Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 11

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NEET

IMPORTANT

Earn 100

Assertion :- As temperature of a metallic current carrying the wire is increased, its resistance increases.

Reason :- Decrease in temperature results in a decrease of electric field strength along the conductor so that the current reduces.

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Important Questions on Current Electricity

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NEET

IMPORTANT

Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 12

A light bull is rated at

110 W

for a

220 V

supply. The resistance of the bulb is

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 13

The resistance of all the wires between any two adjacent dots is

R

. The equivalent resistance between

A

and

B

as shown in the figure is
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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 14

In the shown wire frame, each side of a square (the smallest square) has a resistance

R

. The equivalent resistance of the circuit between the points

A

and

B

is

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IMPORTANT

Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 15

In which of the following arrangements of resistors does the ammeter

M

which has a resistance of

2 Ω

give the largest reading when the same potential difference is applied between points

P

and

Q

?

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IMPORTANT

Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 16

A resistor of

6 kΩ

with tolerance

10 %

and another resistance of

4 kΩ

with tolerance

10 %

are connected in series. The tolerance of the combination is about

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 17

$A$ and $B$ are two points on a uniform ring of resistance $19 Ω .$ The angle $∠ A O B = 45 °$ . The equivalent resistance between $A$ and $B$ is

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 18

If the ammeter in the given circuit reads $2 A$ , the resistance $R$ is

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 19

What is the current $I$ shown in the given circuit?

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