Physics Test - 6

For an ideal diatomic gas, the P-V diagrams are shown. The various quantities indicated in the columns are calculated. The relative values are also given.


In which graph, the temperature change is zero and the work done is positive?

For the given conductor carrying 2 A current, the net magnetic force (in N) on the rod of 6 cm length, carrying 3 A current, as shown in the figure, is

A uniform rod of length L is held with one end resting on a frictionless horizontal surface making an angle α with the vertical. When the rod is released, its angular velocity at an angle θ with the vertical is given by

Whenever the current passing through a coil or circuit changes, the magnetic flux linked with a neighbouring coil or circuit. Hence, an emf will be induced in the neighbouring coil or circuit. This phenomenon of generation of emf is called Mutual Induction.

Consider two coils of different geometry shown in column I. Coefficient of mutual induction is given in column II and the emf induced in the smaller coil is given in column III.


Consider figure (i) shown in column I. A time varying current given as i = 2 + 4t is flowing through the bigger coil. Match the values of the mutual inductance and the emf induced in the smaller coil at t = 2 sec given in column II and column III.

Whenever the current passing through a coil or circuit changes, the magnetic flux linked with a neighbouring coil or circuit. Hence, an emf will be induced in the neighbouring coil or circuit. This phenomenon of generation of emf is called Mutual Induction.

Consider two coils of different geometry shown in column I. Coefficient of mutual induction is given in column II and the emf induced in the smaller coil is given in column III.


Consider figure (ii) shown in column I. A time varying current given as i = 2t(1 + t) is flowing through the bigger coil. Match the values of the mutual inductance and the emf induced in the smaller coil at t = 2 sec given in column II and column III.

Whenever the current passing through a coil or circuit changes, the magnetic flux linked with a neighbouring coil or circuit. Hence, an emf will be induced in the neighbouring coil or circuit. This phenomenon of generation of emf is called Mutual Induction.

Consider two coils of different geometry shown in column I. Coefficient of mutual induction is given in column II and the emf induced in the smaller coil is given in column III.


Consider figure (iii) shown in column I. A time varying current given as i=2/t is flowing through the bigger coil. Match the values of the mutual inductance and the emf induced in the smaller coil at t = 2 sec given in column II and column III.

A person initially at rest throws a ball upward with a speed of 10 m/s at angle 37^o horizontally. He tries to catch the ball. For this, he accelerates just after he throws the ball with a constant acceleration 'a' for 1 sec. He again continues to run at a constant speed and finally catches the ball exactly at the same height at which he threw the ball. (Use g = 10 m/s²)

A block of mass 10 kg is placed at a distance of 5 m from the rear end of a long trolley as shown in the figure. The coefficient of friction between the block and the surface below is 0.2. Starting from rest, the trolley is given a uniform acceleration of 3 ms^-2. At what distance from the starting point will the block fall off the trolley? Consider g = 10 ms^-2.

A copper rod AB is moving with an uniform velocity of 10 m/s parallel to a long straight wire carrying a current of 5.0 A. The rod is perpendicular to the wire with its ends at distances 0.02 m and 0.6 m from it. The emf induced in the rod will be __________.