(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Physics

‘A fuse is rated 8 A’. can it be used with an electrical appliance of rating 5kW, 200V?

An electric kettle is rated 3 kW, 250 V. Give reason whether this kettle can be used in a circuit which contains a fuse of current rating 13 A.

Name the quality which is measured in eV

Name the quality which is measured in Wh.

Name the quality which is measured in kW.

Draw a labelled diagram showing the three magnetic field lines of a loop carrying current. Mark the direction of current and the direction of magnetic field by arrows in your diagram.

A wire, bent into a circle, carries current in an anticlockwise direction. What polarity does this face of the coil exhibit?

What is the direction of magnetic field at the centre of a coil carrying current in clockwise ?

What is the direction of magnetic field at the centre of a coil carrying current in the anticlockwise direction?

Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare their resistances.

A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.

A body of mass m is moving with a uniform velocity u. A force is applied on the body due to which its velocity changes from u to v. How much work is being done by the force?

Is it possible that no transfer of energy may take place even when a force is applied to a body?

The speed of light in air is 3 × 10⁸ m s^-1. Calculate the speed of light in glass. The refractive index of glass is 1.5.

Name two places in india where electricity is generated from nuclear power plants.

A magnet kept at the centre of two coils A and B is moved to and fro as shown in the diagram. The two galvanometers show deflection. State with a reason whether : x > y or x< y    [x and y are magnitudes of deflection.]

A uniform meter scale is in equilibrium as shown in the diagram : 

(i) Calculate the weight of the meter scale.
(ii) Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark ?
F is shifted towards 0 cm
or
F is shifted towards 100 cm

(i) Write one advantage of connecting electrical appliances in parallel combination. 
(ii) What characteristics should a fuse wire have ?
(iii) Which wire in a power circuit is connected to the metallic body of the appliance ?

What is meant by a rotatory motion? Give one example.

State the factors on which moment of force about a point depends.