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 R1
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
Description:

15 Questions on Current Electricity

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IIT-JEE  AIEEE  AIPMT  AFMC  PTU CET

Discussion

Kcp

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

2918 days 18 hours 2 minutes ago

kutta

thanx heped mee get air 203 in iit jee 2010

4144 days 13 hours 22 minutes ago

vimanyu sahu

good

4191 days 12 hours 45 minutes ago

Ashish

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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