When an SCR is turned on, the voltage across it is about _____________?
A. Zero
B. 10 V
C. 1 V
D. 1 V
SCR (Silicon Controlled Rectifiers)
An SCR is a ____________ triggered device?
An SCR is a ____________ triggered device?
A. Voltage
B. Current
C. Voltage as well as current
D. None of the above
An SCR is made of silicon and not germanium because silicon _________________?
An SCR is made of silicon and not germanium because silicon _________________?
A. Is inexpensive
B. Is mechanically strong
C. Has small leakage current
D. Is tetravalent
In an SCR circuit the supply voltage is generally ___________ that of breakover voltage?
In an SCR circuit the supply voltage is generally ___________ that of breakover voltage?
A. Equal to
B. Less than
C. Greater than
D. None of the above
The normal way to turn on a SCR is by______________?
The normal way to turn on a SCR is by______________?
A. Breakover voltage
B. Appropriate anode current
C. Appropriate gate current
D. None of the above
An SCR combines the features of ____________?
An SCR combines the features of ____________?
A. A rectifier and resistance
B. A rectifier and transistor
C. A rectifier and capacitor
D. None of the above
An SCR is turned off by _________________?
An SCR is turned off by _________________?
A. Reducing anode voltage to zero
B. Reducing gate voltage to zero
C. Reverse biasing the gate
D. None of the above
The control element of an SCR is ______________?
The control element of an SCR is ______________?
A. Cathode
B. Anode
C. Anode supply
D. Gate
In the normal operation of an SCR, anode is __________ w.r.t. cathode?
In the normal operation of an SCR, anode is __________ w.r.t. cathode?
A. At zero potential
B. Negative
C. Positive
D. None of the above
An SCR behaves as a____________switch?
An SCR behaves as a____________switch?
A. Unidirectional
B. Bidirectional
C. Mechanical
D. None of the above