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

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.

What do you understand by the clockwise and anti clockwise moment of force?

State the condition when a force produces
           (i) linear motion.
           (ii) rotational motion, in a body.

What do you mean by equilibrium of a body?

State two conditions for a body acted upon by several forces to be in equilibrium.

State the principle of moments.

A body is provided at a point. A force of 20 N is applied at a distance of 40 cm from the pivot. Find the moment of force about the pivot.

The moment of a force 10 N about a point 0 is 4 Nm. Calculate the distance of point of application of force from the point 0.