- greater sensitivity, high current capacity
In a circuit, zener diode is always
- reversed bias
Square law devices
- JFET
If a semiconductor is doped with a small amount of boron, number of holes and electrons will
- decrease(electrons) and increase(holes)
In octal, grouping bits are by
- 3’s
Permeameter is
- an instrument used to determine the characteristic of a ferromagnet
Volatile memory is
- semiconductor ROM
Oscillator oscillates on
- positive feedback
Hexadecimal is
- a number system that use number and letter symbols
MOSFET differ in JFET in
- P-N junction
Before illuminating PN junction, the photodiode is
- reversed bias
In silicon (atomic no. = 14), outermost orbit is
- half filled
Sulphation in lead acid battery is due to
- incomplete charging
General purpose diode suffer avalanche breakdown rather than zener diode because of
- dissipated maximum power
Active materials in nickel iron battery are:
- Nickel hydrogen, powdered iron & oxides and 21%solution of caustic potash
Double energy transients consists of
- reactance, inductance and capacitance
Advantage of compiler over interpreter in computer is
- can store and retrieve as often as required
Emitter is _____ compared to collector
- heavily doped
In CE, if emitter bypass capacitor is removed, ______ will be reduced
- Voltage gain
Inverter circuit employed the conversion of
- DC voltage to AC voltage
If fuse requires a higher current in the circuit, the load will
- seriously overload
Discharge of electricity from a conductor with higher potential
- Corona
Floating point consists of
- a base, exponent and mantisa
Any voltage applied across the PN junction is
- Bias voltage
The main use of class C amplifier is
- As RF amplifier
The main advantage of CMOS logic family over the TTL family is
- much reduced power
In excess-3 code, each coded number is
- three larger than the BCD code
During charging and discharging of nickel-iron cell
- water is neither formed nor adsorbed
The emitter of a transistor is generally doped the heaviest because
- it has to dissipate maximum power
The unique features of common collector amplifier is that it
- levels up the input impedance, does not increase the voltage gain, and acts as an impedance matching device.
The major component of MOS IC is
- MOSFET
The detection sensitivity of CRT depends inversely on
- the distance between the Y plates
Silicon is preferred in zener manufacturing because
- it has high temperature and current capacity
Trickle charging of storage battery helps to
- keep it fresh and fully charged
It is the decrease in voltage gain with frequency
- Roll off
The maximum number of electrons in a valence shell that an atom can have is
- 8
1 KWH of energy is equal to
- 860 Kcal
The transient current in a loss-free LC circuit excited from an AC source
- undamped waveform
The input impedance, h11 of a network with output shorted is given by the ratio
- V1/i1
The function of a rectifier filter is
- to remove the ripple of the rectified output
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