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1.Potential gradient defined bya.E= F /Qb.E=V/Mc.E=V/Fd.E=Q/t2.Choose the value of the resistance for a 100 W, 200 V lamp from the following option.a.100 Ohmsb.1600...

Question

1.Potential gradient defined bya.E= F /Qb.E=V/Mc.E=V/Fd.E=Q/t2.Choose the value of the resistance for a 100 W, 200 V lamp from the following option.a.100 Ohmsb.1600 Ohmsc.400 Ohmsd.200 Ohms3.Which element allows the electric current to flow in it?a.Paperb.Carbonc.Aird.Procelain4.Which of the following Properties change with direction of operation?a.Unilateral Circuitb.Linear Circuitc.Bilateral Circuitd.Non Linear Circuit

1.Potential gradient defined bya.E= F /Qb.E=V/Mc.E=V/Fd.E=Q/t2.Choose the value of the resistance for a 100 W, 200 V lamp from the following option.a.100 Ohmsb.1600 Ohmsc.400 Ohmsd.200 Ohms3.Which element allows the electric current to flow in it?a.Paperb.Carbonc.Aird.Procelain4.Which of the following Properties change with direction of operation?a.Unilateral Circuitb.Linear Circuitc.Bilateral Circuitd.Non Linear Circuit



Answers

A tungsten lightbulb filament is designed to dissipate $100 \mathrm{~W}$ at a $120-\mathrm{V}$ potential difference. (a) What's the filament current, assuming negligible resistance in the rest of the circuit? (b) What is the filament's resistance when lit? (c) If the lit filament is at $1850 \mathrm{~K}$, what's its resistance when off?

Hi integration problem resistance of we lament of light burl is given as R is equal to 240 homes potential difference applied across Cape That is given as we in sequel. 220 Cool. So using own slaw, which is a fundamental relation among the voltage, the current and the resistance the current passing through filament of the bulk to be given by I is equal to we buy our Plugging in all known values here. For me, this is 120 fold For our this is 240 Oh. So finally current passing through the light bulb Comes out to these 0.500. I am your which is the answer for this. Given problem here. Thank you.

In the given problem, we have been given the current passing toe Elam, which is connected across 1 20 bull. So the world ages 1 20 volt and the current passing through the bun is 0.40 and beer in first part of the problem, we have to find the lamps. Resistance when it is on means in this condition that s sisters off The lamp is going by also our physical to be by I means 1 20 volt by 0.40 amputee more 1 20 in 200 by 40 Oh, so it comes out to be 300 home? No. In the second part of the problem, it is said that when the lamp is called X resistance is one faith as great as it is? Wendelin waas hot means it was really so When it is school supposed assistance is given. S are not so This are not Is one him as great as it is, Then it waas hot. So 1/5 off 300 home means when the lamp is not running means it is scored then extra assistance is 60 home No, in the tar part, we have to find the current through the lamb as it is turned on. If it is connected to a potential friends, all 1 20 world means the potential applied is again 1 20 ward and the lamb is just switched on as it is just switched on. So still it is Cord means the resistance off the bulb is 60 old So now it's current will be the by are not using again forms law So it is 1 20 by 60 which comes out to be 2.0 Ambu So this is a current running through the lamb in the beginning. Thank you.

And this question, we are given the voltage on current values for micro wire. I'm not no down the points again, but provide a let's draw a graph. You would do this on a crafty and hence it would be much more, much better on more formal. I'm trying it roughly to scare. Now let's finish drawing a graph scale first. Now we want to draw a graph ofthe V vs so that when we did the slope we buy, tell Dobby build, I would be our assistance. No, we need to choose proper. Yet we know that all data the voltage goes from Syria. The current goes from 0.5 ampere 24 ampere on the whole discourse from 1.94 for 15 0.5 Do. Let's track down the rest of them do. It's one ampere and two amperes on the Although it has been 3.8 and 7.76 now, it's an important skill to choose your unit's properly when you draw any glass, as you see that the current goes from 0.5 before a proper unit charge would be 012 and three and four, whereas for hold it because it calls from almost to toe almost 16 properly. Choice would be 16 12 84 and zero. This way all of her points will be within this. Great. Now the units here, our world on the messier amperes. Mind you, mother, you know this was simply we simply dirty points now for syrup on five ampere which is about here We see that the voltage is almost fooled. Just have off this grid Hence this is almost a point when you do it, Ana gas it or even better on the computer. This will be much better and more exact. Let's use a different color. This is our first point now for second point. It is at one AM Pierre. It's almost fore ward, which is this for the third point at two AM peers, it is almost eight fold. So it's almost here. And for the last point, it is that at four AM Pierre, it's almost 16 world which is almost here. I was there a line through it are even better. Do it with a scale on a graph or do a fit on a computer. It will be much better, but you can see that they're almost on a straight line, which takes us to the second part. It looks like it always the onslaught. A better way to take it is to find out we to buy even aunt compare it with a two by one. Now if we equal toe I r on our physical Toby by eye, then for the same resistance we expect we buy I to be the same on. Hence we expect we to buy everyone to be equal toe. Edouard, I won and we can see the 3.84 by 1.4 is too, which is the same as one by 0.5 and two boys are upon five is four, which is the same as 7.76 by 1.9 for and it is eight for the last case on. If you do a fit on a computer, you'll see that all of the line, all of the points, like exactly on the straight line off your friends, which is how you know the onslaught is obeyed in this case Now for party, we want to find the resistance cells, which is simply Delta V vital that I so we can simply take the lot. The first data data point with the last data point. Dobby is 15.52 World minus 1.9 forward, divided by Hilda is for ampere minus 0.5 ampere which stands out away 3.88 Oh!

For instance, the problem based on a calculation off magnetic field intensity using violent civil slob and MPs slob. Here it is given. Ah, very thin conducting sheet off in finite lead. Oh, heavy current per unit length. Yes, dear. In the first part, we have to find the magnetic field intensity on either side. How? Off the seat you did wild and severed. Snap. Okay. And give the direction foot with dessert and give direction off. Be partners. The actual fire. The magnetic field using can pierce. Look, let us see it. According toa biotin Civil stop. We will consider the element off thickness D x X distance away from both the magnetic field intensity at P which is R distance away. You can see the figure will be Do not upon four point. Yeah, bullfight are d I cause or city here the I will be scarred toe JD x and our will be due toa r squared plus access square and cost. It will be har upon dude off hardest squared, less excess square. Mm. So magnetic field, you will get mu not JD X upon goodbye to root off our square plus access square in tow hard upon group off hardest square plus x square. So it is Toby. We will not j r d x upon to pipe r squared bliss extra square now integrating it for the limit minus infinity toe plus in pretty you not G r d x upon to pipe r squared plus x square. So integrating and substituting the limit you will get it is to be mu, not jail are born to who direction tow watch Hey, I am drawing the diagram here for direction by writing term rule You're the magnetic fields inward and here it is outward be Pardon Oh, for according toe MPs Look it b dot de get to be equal to do not I So if he considered a loop at 3.0, Coby the circle off Radius X then current associate it will be Hi total You will get getting duets to be we at course off Jean toe X into new Not and it is Brooke by X. It's for two. GX knew not on solving it. Mandaric purely will get g upon. You know Jay upon to that's all. Thanks for watching it


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