HARD
12th ICSE
IMPORTANT
Earn 100

Compute the magnitude and direction of the magnetic field at the centre O of the given current-carrying bent wire.

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Important Questions on Moving Charges and Magnetic Field

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 15
An air-solenoid has 500 turns of wire in its 40 cm length. If the current in the wire be 1.0 A, find the magnetic field at the axis inside the solenoid.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 16
A 80 cm long solenoid of diameter 1.8 cm  has 5  layers of windings of 400 turns each and carries a current of 8.0 A. Estimate magnetic field inside the solenoid near the centre.    
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 17
The magnetic field at the centre of a 50 cm long solenoid is 4.0 × 10-2 T . When a current of 8.0 A flows through it. What is the number of turns in the solenoid? (π= 3.14). 
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 18
A.0.5 m long solenoid has 500 turns and has a flux density of 2.52 x 10-3 T at its centre. Find the current in the solenoid.   
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 19
An electron, moving with a velocity of 5 x 107 m s-1 enters a magnetic field of 1 Wb m-2 at an angle of 30°. Calculate the force on the electron.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 20
Calculate the magnitude of the force electron moving with a velocity 3.0 × 107 ms-1 right angles to a magnetic field of 10 T.
 
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 21
An electron is moving vertically upwards with a speed of 2.0 x 108 ms-1. What will be the magnitude and direction of the force on the electron exerted by a horizontal magnetic field of 0.50 NA-1 m-1 directed towards west? What will be the acceleration of the electron?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 22
An electron moving with velocity 5.0×107 ms-1 enters a magnetic field of 1.0 N A-1 m-1 at an angle of 30° to the field. Calculate the force on the electron.