NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 6

MEDIUM

12th ICSE

IMPORTANT

Earn 100

Write the formula for the force on a charge $q$ moving with velocity $\vec{v}$ in a uniform magnetic field $\vec{B}$ . What is the magnitude of this force? When is it zero?

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 7

An electron-beam is deflected in a given field. How will you detect whether the given field is a uniform magnetic field or a uniform electric field?

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 8

What is a solenoid? Draw the lines of force around it.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 9

Write an expression for the magnetic field at axial points inside a long current-carrying solenoid and at one end.

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 10

A current

I = 1.5 A

is flowing through a long solenoid of

500

turns. What is the magnetic force on an electron moving with a velocity of

2.0 x 10^{6} m s^{- 1}

, along the axis of the solenoid, when it is in the middle?

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 11

State Fleming s left-hand rule.

EASY

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 12

Two parallel wires carry currents in same direction.

EASY

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 12

Two parallel wires carry currents in opposite directions. What is the nature of force between them in each case?

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 7 - Moving Charges and Magnetic Field>QUESTIONS>Q 13

Explain why two straight, parallel wires carrying currents in opposite directions repel each other?