Electromagnetic Field Theory - Study Mode
[#131] The inductance and energy stored in joules in the magnetic field of the solenoid having length 30 cm and diameter 3 cm and wound with 1000 turns of wire when carrying a current of 10 Amp.
Correct Answer
(B) 3 mH and 0.15 joules
[#132] Magnetic flux density is given by:
Correct Answer
(B) B = µH
[#133] Tangential component of the electric field on perfect conductor will be
Correct Answer
(B) Zero
[#134] Lorentz's force law for a point charge q is given by:
Correct Answer
(B) $$overrightarrow F = qleft( {overrightarrow E + v imes overrightarrow B }
ight)$$
[#135] Find, which statement is ""TRUE' for A vector field F I. Solenoidal and irrotational if ∇ ⋅ F = 0 and ∇ × F = 0 II. Solenoidal but not irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F = 0 III. Irrotational but not solenoidal, if ∇ × F ≠ 0 and ∇ ⋅ F ≠ 0 IV. Neither solenoidal nor irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F ≠ 0
Correct Answer
(A) I only