The direction of a vector in space is specified by_______________?
(A) One angle
(B) Two angle
(C) Three angle
(D) No angle
Addition of vector obeys_____________?
(A) Commutative law
(B) Distributive law
(C) Associative law
(D) All given laws in A, B and C
An inductor may store energy in ________________?
(A) Its electric field
(B) Its coils
(C) Its magnetic field
(D) Both electric and magnetic fields
Two identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other the current in______________?
(A) Each increase
(B) Each decrease
(C) Each remains the same
(D) One increases whereas that in the other decreases
A voltage V = V0 cos ωt is applied across a resistor of resistance R the average power dissipated per cycle in the resistor is given by___________?
(A) V√/√2R
(B) V/√2√R
(C) V02/√2R
(D) 2/√2√R
n an LCR series circuit, if V is the effective value of the applied voltage VR is the voltage across R VL is the effective voltage across L & Vc is the effective voltage across C then_______________?
(A) V = VR+VL+VC
(B) V2 = VR2+VL2+VC2
(C) V2 = VR2+(VL-VC)2
(D) V2 = VL2+(VR-VC)2
The phase angle between the voltage and the current in an AC circuit consisting of a resistance is______________?
(A) Zero
(B) 45°
(C) 90°
(D) 180°
Choose the correct statement. In the case of AC circuit ohms law holds for_______________?
(A) Peak values of voltage and current
(B) Effective values of voltage and current
(C) Instantaneous values of voltage and current
(D) All of the above
It is easier to turn a steering wheel with both hands than with a single hand because______________?
(A) Accelerating force increases on the wheel
(B) Two forces act on the wheel
(C) Two hands provide a firm grip
(D) The couple acts on the wheel