Current Electricity Test

Result

Current Electricity Test - 70

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

Following figure shows cross-sections through three long conductors of the same length and material, with square cross-section of edge lengths as shown. Conductor B will fit snugly within conductor A, and conductor C will fit snugly within conductor B. Relationship between their end to end resistance is

A
R_A = R_B = R_C

B
R_A> R_B> R_C

C
R_A< R_BC

D
Information is not sufficient

Solution
Question 2
4 / -1

In the following star circuit diagram (figure), the equivalent resistance between the points A and H will be

A
1.944 r

B
0.973 r

C
0.486 r

D
0.243 r

Solution
Question 3
4 / -1

In the adjoining circuit diagram each resistance is of 10 Ω. The current in the arm AD will be

A

B

C

D

Solution
Question 4
4 / -1

In the circuit of adjoining figure the current through 12 Ω resister will be

A
1A

B

C

D

Solution
Question 5
4 / -1

The reading of the ideal voltmeter in the adjoining diagram will be

A
4 V

B
8 V

C
12 V

D
14 V

Solution
Question 6
4 / -1

The resistance of the series combination of two resistances is S. When they are joined in parallel the total resistance is P. If S = nP, then the minimum possible value of n is

A
4

B
3

C
2

D
1

Solution
Question 7
4 / -1

A moving coil galvanometer has 150 equal divisions. Its current sensitivity is 10 divisions per milliampere and voltage sensitivity is 2 divisions per millivolt. In order that each division reads 1 volt, the resistance in ohms needed to be connected in series with the coil will be

A
99995

B
9995

C
10³

D
10⁵

Solution
Question 8
4 / -1

Consider a thin square sheet of side L and thickness t, made of a material of resistivity ρ. The resistance between two opposite faces, shown by the shaded areas in the figure is

A
Directly proportional to L

B
Directly proportional to t

C
Independent of L

D
Independent of t

Solution
Question 9
4 / -1

In the adjacent shown circuit, a voltmeter of internal resistance R, when connected across B and C reads 100/3V. Neglecting the internal resistance of the battery, the value of R is

A
100 KΩ

B
75 KΩ

C
50 KΩ

D
25 KΩ

Solution
Question 10
4 / -1

To verify ohm\'s law, a student is provided with a test resistor R_T, a high resistance R₁, a small resistance R₂, two identical galvanometers G₁ and G₂, and a variable voltage source V. The correct circuit to carry out the experiment is

A

B

C

D