RC ELEC 03

In an R-C series circuit excited by a voltage E, the charge across capacitor at t = 0^+ is ______.

0

To prevent a DC return between source and load, it is necessary to use _______.

capacitor between source and load

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density _______.

decreases

If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage ______.

is zero.

In an ac circuit, what can be the maximum and minimum values of power factor?

1 and 0

For all resistor wattage ratings except 1/8 watt, what is the maximum allowable change in resistance for a 1000-hour rated load life test?

10%

True or False: The number of n-type carriers equals the number of p-type carriers in extrinsic silicon.

False

A capacitor terminology that refers to minute and rapid fluctuations of capacitance?

Scintillation

When a current source I is suddenly connected across a two terminal relaxed RC circuit at time t = 0, the voltage across the current source is shown in figure. The RC circuit is ______.

a series combination of R and parallel combination of R and C.

In a CE amplifier the input impedance is equal to the ratio of______.

ac base voltage to ac base current

The B-H curve for _____ will be a straight line passing through the origin.

hardened steel

An RLC series circuit is underdamped. To make it overdamped, the value of R ______

has to be increased.

The drift velocity of electrons is ______.

very small as compared to speed of light.