MEDIUM
12th Odisha Board
IMPORTANT
Earn 100
State and explain Ampere's circuital law.
Important Questions on Magnetic Effect of Electric Current
HARD
12th Odisha Board
IMPORTANT
State and explain Biot-Savart law.
MEDIUM
12th Odisha Board
IMPORTANT
A cable carrying a direct current is buried in a wall that stands in a north-south plane. On the west side of the wall a horizontal compass needle points south instead of north. What are the position of the cable.
MEDIUM
12th Odisha Board
IMPORTANT
A cable carrying a direct current is buried in a wall that stands in a north-south plane. On the west side of the wall a horizontal compass needle points south instead of north. What is the direction of the current in the cable?
HARD
12th Odisha Board
IMPORTANT
A stream of electrons is projected horizontally towards right. A magnet brought near the electron beam produces a field directed downward. Explain what happens.
HARD
12th Odisha Board
IMPORTANT
What sort of path will electrically charge particles follow if they are initially moving at right angle to uniform flux density in vacuum? Will such particles experience an energy change during this motion? Explain briefly.
HARD
12th Odisha Board
IMPORTANT
Why are magnetic fields used in many machine designed to accelerate charged particles to high energy?
MEDIUM
12th Odisha Board
IMPORTANT
In what respects are the actions of a galvanometer and a motor similar?
HARD
12th Odisha Board
IMPORTANT
An ammeter and a voltmeter of suitable ranges are to be used to measure the current and voltage of an electric lamp. If a mistake were made and the meters are interchanged what will happen? Explain.
