Question 61 : Field lines move from __________
1. North to south
2. South to north
3. West to east
4. East to west
View Answer   Discuss with Members

Question 62 : Magnetic Field lines move from _______
1. North to south
2. South to north
3. West to east
4. East to west
View Answer   Discuss with Members

Question 63 : How can a magnetic field be produced?
1. Using a permanent magnet
2. Electric current
3. Using a temporary magnet
4. Using a permanent magnet or electric current
View Answer   Discuss with Members

Question 64 : Weakest force in nature is?
1. Electric force
2. Gravitational force
3. Weak force
4. Magnetic force
View Answer   Discuss with Members

Question 65 : What is the strength of magnetic field known as ________
1. Flux
2. Density
3. Magnetic strength
4. Magnetic flux density
View Answer   Discuss with Members

Question 66 : The ratio of magnetic force to electric force on a charged particle getting undeflected in a field is?
1. 1
2. 0
3. 2
4. 4
View Answer   Discuss with Members

Question 67 : If the flow of electric current is parallel to the magnetic field, the force will be ______
1. Zero
2. Infinity
3. Maximum
4. Half the original value
View Answer   Discuss with Members

Question 68 : When a charged particle moves at right angles to the magnetic field, the variable quantity is?
1. Momentum
2. Speed
3. Energy
4. Moment of inertia
View Answer   Discuss with Members

Question 69 : Which, among the following qualities, is not affected by the magnetic field?
1. Moving charge
2. Change in magnetic flux
3. Current flowing in a conductor
4. Stationary charge
View Answer   Discuss with Members

Question 70 : What is the magnetic field outside a solenoid?
1. Infinity
2. Half the value of the field inside
3. Double the value of the field inside
4. Zero
View Answer   Discuss with Members