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Physics 10 Chapter 15 - Electromagnetism - 3
1.
Which of the following rule states that “Grasp a wire with your right hand such that your thumb is pointed in direction of positive current? Then curling fingers of your hand will point in the direction of the magnetic field"?
a) Faraday's Left Hand Rule
b) Right Hand Grip Rule
c) Left Hand Rule
d) Fleming's Right Hand Rule
2.
A wire consisting of many loops is called.................?
a) Secondary coil
b) Straight wire
c) Magnet
d) Solenoid
3.
If you grasp a wire with your right hand such that your thumb is pointed in the direction of positive current. Then what does curling fingers of your hand show?
a) Direction of north pole
b) Direction of force on conductor
c) Direction of magnetic field
d) Direction of south pole
4.
What is the long coil of wire consisting of many loops called?
a) Solenoid
b) Magnet
c) Bar magnet
d) Bunch
5.
What is the type of temporary magnet called which is created when current flows through a coil?
a) Electromagnet
b) Farad magnet
c) South Pole magnet
d) North Pole magnet
6.
With which rule, the direction of the field produced by a coil due to the flow of conventional current can be found?
a) Left Hand Rule
b) Faraday's Left Hand Rule
c) Fleming's Right Hand Rule
d) Right Hand Grip Rule
7.
If we grip the coil with our right hand by curling our fingers in the direction of the conventional current, what does our thumb indicate?
a) Direction of force on conductor
b) North Pole of the coil
c) Direction of magnetic field
d) South Pole of the coil
8.
When the force on the wire in the magnetic field is increased?
a) Strength of magnetic field is decreased
b) Length of the wire inside magnetic field is decreased
c) Current in the wire is increased
d) The angle b/w wire and magnetic field is 45
o
9.
When the force on the wire in the magnetic field is increased?
a) The angle b/w wire and magnetic field is 45
o
b) Strength of magnetic field is increased
c) Length of the wire inside magnetic field is decreased
d) Current in the wire is decreased
10.
Who discovered that the force on the wire is at right angles to both the direction of the magnetic field and the direction of the current?
a) Abdul Salam
b) Ampere
c) Michael Faraday
d) John Pascal
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