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Unit 16: Current Electricity + Unit 17: Electric Circuits

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1

The resistance of an ideal ammeter is:

2

Resistance increases with increase in:

3

The resistance of an ideal voltmeter is:

4

Which color is usually used for the live wire?

5

When cells are connected in series, the total EMF is:

6

Electric power can be calculated using the formula:

7

To convert a galvanometer into a voltmeter, we connect:

8

Electric shock occurs due to:

9

Which safety device automatically breaks the circuit during overload?

10

Which quantity remains the same across each branch of a parallel circuit?

11

The SI unit of resistance is:

12

Resistivity of a material depends on:

13

One ampere of current means the flow of charge equal to:

14

In a parallel combination of resistors, the total resistance is:

15

Which instrument is used to measure electric current?

16

The internal resistance of a cell causes:

17

In the formula R = ρL/A, the symbol ρ represents:

18

The slope of V-I graph represents:

19

The experiment for demonstration of resistance verifies:

20

The SI unit of resistivity is:

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