Consider the case when a bird is flying with $10 {ms}^{- 1}$ where the perpendicular component of earth's magnetic field is $40 μT .$ Find the $emf$ induced between two points upon bird's wing separated by $2 cm$ . Assuming ALL the vectors to be mutually perpendicular to each other.

Important Questions on Electromagnetic Induction

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 18

A small coil of area

5 {cm}^{2}

, number of turns

50

is kept normal to a uniform magnetic field

B

tesla. The coil is rotated about its diameter through

180 °

, in

15 ms

. The total charge flow is

50 mC

. Find

B

, assume resistance

R = 10 Ω .

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 19

Derive the expression for the self inductance of a section of a long solenoid and hence show that self inductance is proportional to the square of number of turns per unit length.

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 20

Prove that the magnetic energy stored inside a solenoid is proportional to the square of magnetic field. Also show its analogy for electric energy stored in the space between the plates of capacitor.

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 21

Find the mutual inductance of two long concentric/coaxial solenoid for a length