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

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$A$ 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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Important Questions on Current Electricity

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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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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 20

Four resistors,

100 Ω, 200 Ω, 300 Ω

and

400 Ω

are connected to form four sides of a square. The resistors can be connected in any order. What is the maximum possible equivalent resistance across the diagonal of the square?

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 21

Whether the switch

K

is open or closed, the reading of galvanometer is the same. If

I

denotes the current in respective resistance, then
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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 22

The potential difference between points $A$ and $B$ is

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 23

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In the circuit shown, the current in the

1 Ω

resistor is:

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 24

In the electric network shown, when no current flows through the

4 Ω

resistor in the arm EB, the potential difference between the points A and D will be:

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Physics Crash Course NEET>Chapter 13 - Current Electricity>Level 3>Q 25

For the circuit shown, with

R_{1} = 1.0 Ω

,

R_{2} = 2.0 Ω

,

E_{1} = 2 V

and

E_{2} = E_{3} = 4 V,

the potential difference between the points

‘ a ’

and

‘ b ’

is approximately (

i n V

):

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