# CBSE-XII-Phy-Ch-2-Current Electricity-Paper-3 Online Test

If R1 and R2 are respectively the filament resistance of a 200 W bulb and 100 W bulb designed to operator on the same voltage, then:
R1 is two times R2
R2 is two times R1
R2 is four times R1
R1 is four times R2


3 V
2 V
5 V
4 V

10/9
0.1
1.0
10.0

1(
3(
10(
5(

1.5 V
3.0 V
0.67 V
1.33 V
In an experiment to measure the internal resistance of a cell by potentiometer, it is found that the balance point is at a length of 2m when the cell is shunted by a 5( resistance; and is at a length. Of 3 m when the cell is shunted by 10( resistance. The internal resistance of the cell is, then:
1.5(
10(
15(
1(

320(
8(
20(
40(
In order to pass 10 % of main current through a moving coil galvanometer of 99 (, the resistance of the required shunt is:
9.9(
10(
11(
9(
How much work is required to carry a 6 (C charge from the negative terminal to the positive terminal of a 9 V battery?
54(10–3 j
54(10–6 j
54(10–9 j
54(10–12 j


5(
10(
15(
20(

3 A
13 V
23 A
-3 A

B will be zero
A will be zero
A and B will be 2V
A will be > 2V and B will be <2V

Zero
20 V
60 V
120 V
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15 Questions on Current Electricity

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Discussion

explanations should be provided... :/
its not upto mark

2918 days 18 hours 2 minutes ago

thanx heped mee get air 203 in iit jee 2010

4144 days 13 hours 22 minutes ago

good

4191 days 12 hours 45 minutes ago

I just came across practice questions on IIT-JEE on Current Electricity, it was fun and new questions kept coming even after I tried more than 30 questions, try it out at http://www.simplylearnt.com/practice/questions/Current-Electricity-1

4286 days 19 hours 55 minutes ago

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