Quiz 09 – APS Physics

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Passing percentage = 60%

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Magnetism

1 / 10

A fuse is rated at 8 A, it means :

It has a resistance of 8 ohm.

It will work only if current is 8 A.

It will not work if current is less than 8 A.

It will burn if current exceeds 8 A.

2 / 10

The main advantage of AC over DC is

AC can be transmitted to long distances with huge power loss

Air Conditioners (AC) works only on alternating current (AC)

AC can be transmitted to long distances without much power loss

AC can be transmitted to long distances with zero power loss

3 / 10

If the magnitude of electric current is constant and its flows in one direction only then such a current is known as

good current

bad current

alternating current

direct current

4 / 10

The magnetic field inside a long straight solenoid carrying current

increases as we move towards its end

is same at all points

decreases as we move towards its end

is zero

5 / 10

Two safety measures commonly used in domestic electric circuits are

Fuse and Earth wire

Live wire and neutral wire

Earth wire and neutral wire

Earth wire and electric meter

6 / 10

Short-circuit is a condition when

neutral wire comes in contact with earth wire

live wire comes in contact with the neutral wire without any load in between

earth wire comes in contact with metallic part of the appliance

length of the connecting wires is reduced to make the circuit looks smaller i.e. short

7 / 10

Two magnetic field lines:

Intersect at neutral point

Intersect at the midpoint of the magnet

Never intersect each other

Intersect near north-pole or south pole

8 / 10

A stationary charged particle is placed in an external magnetic field. The force on the charge particle will be

zero

perpendicular to the magnetic field

maximum

parallel to the magnetic field

9 / 10

When a charged particle moves in a uniform magnetic field perpendicular to it, direction of magnetic force is given by which rule?

Flemings's right hand rule

right hand thumb rule

Fleming's left hand rule

left hand thumb rule

10 / 10

When an electron is moving upwards in a uniform magnetic field which is directed from left to right as shown in the figure, what will be the direction of force acting on this particle?

towards south

towards north

inwards

outwards

The average score is 85%

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