The direction of propagation of an electromagnetic waves is________________?

Related Mcqs:

An alternating current or voltage_____________________?

A. fluctuates off and on B. varies in magnitude alone C. changes its direction again and again D. changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals...

When A.C current passes through a capacitor then the current relationship will be_______________?

A. The current lead voltage by phase angle is 90 degrees B. The voltage leads current by phase angle is 90 degrees C. The current lead voltage by phase angle is 45 degrees D. The voltage leads current by phase angle is 45 degrees...

In the capacitive circuit the current___________________?

A. Lags behind voltage by π/2 B. Is in phase with voltage C. Opposite in phase of voltage by π D. Leads forward the voltage by π/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°...

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_______________?

IA. V = VR+VL+VC B. V2 = VR2+VL2+VC2 C. V2 = VR2+(VL-VC)2 D. V2 = VL2+(VR-VC)2...