Current Electricity Test

Result

Current Electricity Test - 94

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Two wires of the same material and equal length are joined in parallel combination. If one of them has half the thickness of the other and the thinner wire has a resistance of 8 ohms, the resistance of the combination is equal to

A

B

C

D

Solution
Question 2
4 / -1

A uniform wire of resistance 9Ω is cut into 3 equal parts. They are connected in the form of equilateral triangle ABC. A cell of e.m.f. 2 V and negligible internal resistance is connected across B and C. Potential difference across AB is

A
1 V

B
2 V

C
3 V

D
0.5 V

Solution
Question 3
4 / -1

Out of five resistances of resistance R Ω. each 3 are connected in parallel and are joined to the rest 2 inseries. Find the resultant resistance

A

B

C

D

Solution
Question 4
4 / -1

In the circuit shown, if a conducting wire is connected between point A and B, the current in this wire will

A
Be zero

B
Flow from B to A

C
Flow from A to B

D
Flow in the direction which will be decided by the value of V

Solution
Question 5
4 / -1

A

B
2 ohm

C

D
3 ohm

Solution
Question 6
4 / -1

In the circuit, the potential difference across PQ will be nearest to

A
9.6 V

B
6.6 V

C
4.8 V

D
3.2 V

Solution
Question 7
4 / -1

Three resistors are connected to form the sides of a triangle ABC, the resistance of the sides AB, BC and CA are 40 ohm, 60 ohm and 100 ohm respectively. The effective resistance between the points A and B in ohm will be

A
32

B
64

C
50

D
200

Solution
Question 8
4 / -1

Two wires of the same dimensions but resistivitiesρ₁ and ρ₂ are connected in series. The equivalent resistivity of the combination is

A

B

C

D

Solution
Question 9
4 / -1

Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio 1 : 2 and if no resistance value is fractional, the largest of the three resistances in ohm is

A
4

B
6

C
8

D
12

Solution
Question 10
4 / -1

A 3 volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

A
1/3 A

B
1 A

C
1.5 A

D
2 A

Solution