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10 questions
The direction of force on a current carrying conductor in a magnetic field is given by
A) Fleming’s left-hand rule
B) Fleming’s right-hand rule
C) Right hand thumb rule
D) Left hand thumb rule
The process by which changing magnetic field in a conductor induces as a current in another conductor is called as-
A) Electromagnetic induction
B) Electromagnetic conduction
C) Electric induction
D) Current induction
We can induce current in the coil by-
A) Moving it in a magnetic field
B) Changing magnetic field around it
C) Option A and B both
D) None of the above
The laws of electrolysis and electromagnetic induction was discovered by-
A) Hans Christian Oersted
B) Stephen Hawking
C) Albert Einstein
D) Michael Faraday
The unit of magnetic field strength is-
A) Faraday
B) Oersted
C) Pascal
D) Newton
Magnetic field is a quantity that has-
A) Direction
B) Magnitude
C) Both direction and magnitude
D) None of the above
Magnetic field lines will-
A) Cut each other
B) Bisect each other
C) Never cut each other
D) Subtend right angle with respect to each other
The relative strength of a magnetic field is shown by-
A) Thickness of the magnet
B) Weight of the magnet
C) Closeness of the field lines
D) None of the above
Moving magnet inside a conducting coil can generate-
A) Electric current
B) Potential difference
C) Deflection in galvanometer
D) All of the above
Magnetic field at a distance r from an infinitely long straight conductor carrying a steady current varies as
A) 1/r^2
B) 1/r
C) 1/r^3
D) 1/√r
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