Electromagnetic Induction Test

Result

Electromagnetic Induction Test - 17

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

A coil having area 2m² is placed in a magnetic field which changes from 1 wb/m² to 4 wb/m² in an interval of 2 second. The emf induced in the coil of single turn is....

A
4 v

B
3 v

C
1.5 v

D
2 v
Question 2
4 / -1

Two different loops are concentric & lie in the same plane. The current in outer loop is clockwise & increasing with time. The induced current in the inner loop then, is..........

A
clockwise

B
zero

C
counter clockwise

D
direction depends on the ratio of loop radii
Question 3
4 / -1

A magnetic field 2 × 10^–2 T acts at right angles to a coil of area 200 cm² with 25 turns. The average emf induced in the coil is 0.1 v when it removes from the field in time t. The value of t is

A
0.1 sec

B
1 sec

C
0.01 sec

D
20 sec
Question 4
4 / -1

The magnetic flux linked with a coil, in webers, is given by the equation ϕ = 4t² – 3t + 7. Then the magnitude of induced emf at 2 sec will be ...

A
15 v

B
19 v

C
17 v

D
21 v
Question 5
4 / -1

When a train travels with a speed 360 km h^–1 along the track separated by 1 meter. The vertical component of earth's magnetic field is 0.1 × 10^–4 T. What is the value of induced emf between the rails ?

A
10^–2 V

B
10^–4 V

C
10^–3 V

D
1 V
Question 6
4 / -1

An electron moves along the line AB,which lies in the same plane as a circular loop of conducting wires as shown in figure. What will be the direction of current induced if any, in the loop ?

A
No current will be induced

B
The current will be clockwise

C
The current will be anticlockwise

D
The current will change direction as the electron passes by
Question 7
4 / -1

A circular loop of radius R carrying current I lies in X – Y plane with its center at origin. The total magnetic flux through x – y plane is.....

A
Directly proportional to I

B
Directly proportional to R

C
Directly proportional to R²

D
zero
Question 8
4 / -1

Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will

A
Remain unchanged

B
Increasing in both

C
Increasing in one decreasing in other

D
Decreasing in both
Question 9
4 / -1

When the number of turns in a coil is make four time without any change in length of the coil, its self inductance becomes......

A
unchanged

B
two times

C
four times

D
sixteen times
Question 10
4 / -1

A metal road moves at a constant velocity in a direction perpendicular to its length & a constant uniform magnetic field too. Select the correct statement (s) from the following.

A
The entire rod is at the same electrical potential

B
There is an electric field in the rod

C
The electric potential is highest at the center of the rod

D
The electric potential is lowest at the center of the rod

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Electromagnetic Induction Test - 17

Result

Electromagnetic Induction Test - 17

Score

-

Rank

-

SHARING IS CARING

Question 1

4 v

3 v

1.5 v

2 v

Question 2

clockwise

zero

counter clockwise

direction depends on the ratio of loop radii

Question 3

0.1 sec

1 sec

0.01 sec

20 sec

Question 4

15 v

19 v

17 v

21 v

Question 5

10–2 V

10–4 V

10–3 V

1 V

Question 6

No current will be induced

The current will be clockwise

The current will be anticlockwise

The current will change direction as the electron passes by

Question 7

Directly proportional to I

Directly proportional to R

Directly proportional to R2

zero

Question 8

Remain unchanged

Increasing in both

Increasing in one decreasing in other

Decreasing in both

Question 9

unchanged

two times

four times

sixteen times

Question 10

The entire rod is at the same electrical potential

There is an electric field in the rod

The electric potential is highest at the center of the rod

The electric potential is lowest at the center of the rod

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

10^–2 V

10^–4 V

10^–3 V

Directly proportional to R²