A closely wound solenoid of 800 turns has area of cross section 2.5 cm 2. Magnetic moment (in J/T) associated with it, when it carries a current of 3 A is -

Question

A closely wound solenoid of 800 turns has area of cross section 2.5 cm 2. Magnetic moment (in J/T) associated with it, when it carries a current of 3 A is - (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

M = NiA =800 × 3 × 2.5 × 10-2=0.6 JT -1

Q. A closely wound solenoid of $800$ turns has area of cross section $2.5 c m^{2}$ . Magnetic moment (in $J / T$ ) associated with it, when it carries a current of $3 A$ is -

$M = N i A$
$= 800 \times 3 \times 2.5 \times 1 0^{- 2} = 0.6 J T^{- 1}$

Q. A closely wound solenoid of 800 turns has area of cross section 2.5cm2. Magnetic moment (in J/T) associated with it, when it carries a current of 3A is -

M=NiA =800×3×2.5×10−2=0.6JT−1

Q. A closely wound solenoid of $800$ turns has area of cross section $2.5 c m^{2}$ . Magnetic moment (in $J / T$ ) associated with it, when it carries a current of $3 A$ is -

$M = N i A$
$= 800 \times 3 \times 2.5 \times 1 0^{- 2} = 0.6 J T^{- 1}$