This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Physics 10 Chapter 15 - Electromagnetism - 4
1.
The number of lines of force in a magnetic field depends upon?
a) Magnet
b) Strength of field
c) Size of coil
d) Shape of coil
2.
When the force on the wire in the magnetic field is increased?
a) Length of the wire inside magnetic field is increased
b) Strength of magnetic field is decreased
c) The angle b/w wire and field is 45
o
d) Current in the wire is decreased
3.
When the force on the wire in the magnetic field is increased?
a) The angle b/w wire and magnetic field is 90
o
b) Current in the wire is decreased
c) Strength of magnetic field is decreased
d) Length of the wire inside magnetic field is decreased
4.
By using which rule, the direction of the force on a current-carrying wire in a magnetic field can be found?
a) Fleming's Left Hand Rule
b) Right Hand Grip Rule
c) Left Hand Rule
d) Faraday's Left Hand Rule
5.
Which of the following rule states that stretch the thumb, forefinger and the middle finger of the left hand mutually perpendicular to each other?
a) Faraday's Left Hand Rule
b) Left Hand Rule
c) Right Hand Grip Rule
d) Fleming's Left Hand Rule
6.
In Fleming left hand rule, what does the thumb indicate?
a) North pole of the coil
b) South pole of the coil
c) Direction of the magnetic field
d) Direction of the force acting on the conductor
7.
When a current carrying conductor is placed in magnetic field, then with the help of which rule, we can find the direction of magnetic force?
a) Ohm's left hand rule
b) Faraday's left hand rule
c) Henry's left hand rule
d) Fleming's left hand rule
8.
In Fleming left hand rule, what does index finger indicate?
a) Force
b) Magnetic field
c) Current
d) North Pole
9.
According to Fleming’s left hand rule, the direction of force on the conductor is given by?
a) Fore finger
b) Thumb
c) Middle finger
d) Little finger
10.
The value of force is minimum when the angle between magnetic lines of force and velocity V is...................?
a) 90o
b) 30o
c) 60o
d) 0o
This is more feedback!
This is the feedback!
