Electromagnetic Induction questions
610 published questions with worked solutions.
- A circular conducting coil of radius 1 m is being heated by the change of magnetic field B passing perpendicular to the plane in...
- A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with angular speed of 50 rad s^ -1 in a...
- An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8A is passed...
- An aeroplane, with its wings spread 10 m, is flying at a speed of 180 km/h in a horizontal direction. The total intensity of...
- A circular coil of 1000 turns each with area 1 m^ 2 is rotated about its vertical diameter at the rate of one revolution per...
- Magnetic flux (in weber) in a closed circuit of resistance 20 varies with time t(s) as = 8t^ 2 - 9t + 5. The magnitude of the...
- The current in a coil of self inductance 2.0 H is increasing according to I = 2 (t^ 2 ) A. The amount of energy spent during the...
- In a coil of resistance 8 , the magnetic flux due to an external magnetic field varies with time as = (2/3)(9 − t^ 2 ). The value...
- The dimension of mutual inductance is :
- A metallic conductor of length 1 m rotates in a vertical plane parallel to east-west direction about one of its end with angular...
- The magnetic flux through a coil perpendicular to its plane is varying according to the relation = (5t^ 3 + 4t^ 2 + 2t - 5)...
- A 10 , 20 mH coil carrying constant current is connected to a battery of 20 V through a switch. Now after switch is opened...
- A coil is placed in magnetic field such that plane of coil is perpendicular to the direction of magnetic field. The magnetic flux...
- A square shaped coil of area 70 cm^2 having 600 turns rotates in magnetic field of 0.4 Wbm^ -2 , about an axis which is parallel...
- Two concentric circular coils with radii 1 cm and 1000 cm and number of turns 10 and 200 respectively are placed coaxially with...
- Two inductors L_1 (inductance 1 mH, internal resistance 3 ) and L_2 (inductance 2 mH, internal resistance 4 ), and a resistor R...
- According to Fleming's right-hand rule, if the forefinger indicates the direction of magnetic field and thumb shows the direction...
- A DC generator works on the principle of
- Consider an LC circuit, with inductance L = 0.1 H and capacitance C = 10^ -3 F, kept on a plane. The area of the circuit is 1...
- A conducting circular loop is placed in X-Y plane in presence of magnetic field B = (3t^ 3 j + 3t^ 2 k ) in SI unit. If the...
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