A solenoid has a core of a material with relative permeability $\mu_r = 400$ . The windings of the solenoid carry a current of 2 A, with 1000 turns per metre. What is the magnetisation $M$ of the core material in A/m?
A
$8 \times 10^5 A/m$
B
$7.98 \times 10^5 A/m$
C
$9 \times 10^5 A/m$
D
$7.5 \times 10^5 A/m$

Question

A solenoid has a core of a material with relative permeability $\mu_r = 400$ . The windings of the solenoid carry a current of 2 A, with 1000 turns per metre. What is the magnetisation $M$ of the core material in A/m?

A

$8 \times 10^5 A/m$

B

$7.98 \times 10^5 A/m$

C

$9 \times 10^5 A/m$

D

$7.5 \times 10^5 A/m$

Accepted Answer

8 	imes 10^5 A/m

Answer

7.98 	imes 10^5 A/m

Answer

9 	imes 10^5 A/m

Answer

7.5 	imes 10^5 A/m

NEET Physics Magnetic Properties of Materials MCQ Question

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