A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is

The magnetic flux linked with coil is proportional to

Two coils P and Q are kept near each other. When no current flows through coil P and current increases in coil Q at the rate 10 A//s , the emf in coil P is 15 mV. When coil Q carries no current and current of 1.8 A flows through coil P, the magnetic flux linked with the coil Q is

Two circular coils of radius 10 cm and 15 cm are placed close to each other. Current of 0.2 A flows through the coil of radius 10 cm. Find the flux linked with coil of 15 cm if coefficient of mutual inductance of the pair is 0.005 H.

Assertion If current passing through a circular loop is doubled, then magnetic flux linked with the circular loop will also become two times. Reason No flux will link through the coil by its own current.

A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T . The normal to the plane of the coil makes an angle of 60^(@) with the direction of the magnetic field. The magnetic flux linked with the coil is

When a current of 5A flows in the primary coil, then the flux linked with the secondary coil is 200 weber. The value of coefficient of mutual induction will be

A coil of self-inductance L is placed in an external magnetic field (no current flows in the coil). The total magnetic flux linked with the coil is varphi . The magnetic field energy stored in the coil is

the inductance of a closed-packed coil of 400 turns is 8mH . A current of 5mA is passed through it. The magnetic flux through each turn of the coil is

A current I is flowing in an octagonal coil of side a figure. The magnetic field induction at the centre O of the coil will be

A current I is flowing in a hexgonal coil of side a figure. The magnetic field induction at the centre O of the coil will be