Current Electricity Test

Result

Current Electricity Test - 23

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

The colours of the rings on a resistor are brown, yellow, green and gold as seen from the left to the right. The value of the resistance is

A
(1.4 ± 0.07) MΩ

B
(2.4 ± 0.05) MΩ

C
(3.4 ± 0.5) MΩ

D
(1.4 ± 0.05) MΩ
Question 2
4 / -1

Two metallic rings A and B, identical in shape and size but having different resistivities ρ_A and ρ_B , are kept on top of two identical solenoids as shown in the figure. When current1 is switched on in both the solenoids in identical manner, the rings A and B jump to the heights h_Aand h_B , respectively, with h_A> h_B .
The possible relation(s) between their resistivities and their masses m_Aand m_B is (are)

A
ρ_A > ρ_B and m_A = m_B

B
ρ_A < ρ_B and m_A = m_B

C
ρ_A > ρ_B and m_A > m_B

D
ρ_A< ρ_B and m_A = m_B

Solution
Question 3
4 / -1

If the free electron density ben and relaxation time be T, the electrical conductivity of a conductor may be expressed as

A

B

C

D

Solution
Question 4
4 / -1

The plot represents the flow of current through a wire at three different times.
The ratio of charges flowing through the wire at different times is

A
2 : 1 : 2

B
1 : 3 : 3

C
2 : 3 : 4

D
2 : 3 : 3
Question 5
4 / -1

Which of the following set up can be used to verify the Ohm's law?

A

B

C

D
Question 6
4 / -1

In the given figure, the steady state current in the circuit is

A
zero

B
0.6 A

C
0.9 A

D
1.5 A

Solution
Question 7
4 / -1

The current I drawn from the 5 V source will be

A
0.33 A

B
0.5 A

C
0.67 A

D
0.17 A

Solution
Question 8
4 / -1

In the circuit (figure) the current is to be measured. The ammeter shown is a galvanometer with a resistance R_G = 60.00Ω converted to an ammeter by a shunt resistance r_s = 0.2Ω. The value of the current is

A
0.79 A

B
0.29 A

C
0.99 A

D
0.8 A

Solution
Question 9
4 / -1

Four resistence of 10 Ω, 60Ω, 100 Ω and 200Ω, respectively taken in order are used to form a Wheatstone's bridge. A 15 V battery is connected to the ends of a 200Ω resistance, the current through it will be

A
7.5 × 10^-5 A

B
7.5 × 10^-4 A

C
7.5 × 10^-3 A

D
7.5 × 10^-2 A

Solution
Question 10
4 / -1

When a resistor of 11Ω is connected in series with an electric cell. The current flowing in it is 0.5 A. Instead when a resistor of 5Ω is connected to the same electric cell is series, the current increases by 0.4 A. The internal resistance of the cell is

A
1.5Ω

B
2Ω

C
2.5Ω

D
3.5Ω

Solution