Current Electricity Test

Result

Current Electricity Test - 128

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Maximum power developed across resistance R in the circuit shown in Fig. is

A
25 W

B
50 W

C
75 W

D
100 W

Solution
Question 2
4 / -1

A tap supplies water at 22ºC. A man takes 1 litre water per minute at 37ºC from the geyser. The power of geyser is

A
525 W

B
1575 W

C
1050 W

D
2100 W

Solution
Question 3
4 / -1

A

B

C

D

Solution
Question 4
4 / -1

The effective resistance of a n number of resistors connected in parallel in x ohm. When one of the resistors is removed, the effective resistance becomes y ohm. The resistance of the resistor that is removed is....

A

B

C

D

Solution
Question 5
4 / -1

when a cell is connected to a resistance R₁ the rate at which heat is generated in it is the same as when the cell is connected to a resistance R₂ (1 ) the internal resistance of the cell is....

A

B

C

D

Solution
Question 6
4 / -1

Length of a wire of resistance RΩ is increased to 10 times, so its resistance becomes 1000Ω, therfore R = .... (The volume of the wire remains same during increase in length)

A
0.01 Ω

B
0.1 Ω

C
1 Ω

D
10 Ω
Question 7
4 / -1

A

B

C

D
Question 8
4 / -1

A

B

C

D
Question 9
4 / -1

Two batteries each of emf 2V and internal resistance 1Ω are connected in series to a resistor R. Maximum Possible power consumed by the resistor = ....

A
3.2 W

B

C

D
2W

Solution
Question 10
4 / -1

In an experiment to measure the intenal resistance of a cell by a potentiometer it is found that all the balance points at a length of 2m when the cell is shunted by a 5 ohm resistence and is at a length of 3m when the cell is shunted by a 10 ohm resistance, the internal resistance of the cell is then :

A
1.5 Ω

B
10 Ω

C
15 Ω

D
1 Ω

Solution