Threshold voltage at which LED emits light is
A) less than 0.6
B) equal to 0.6
C) more than 0.6
D) more than 3
Correct Answer:
Verified
Q4: If the connections across the resistor are
Q5: In semiconductors upon increasing temperature, conductivity
A)decreases
B)increases
C)remains constant
D)haphazard
Q6: In NTC thermistor on increasing temperature, the
Q7: A component that allows unidirectional current to
Q8: A rectifier converts
A)DC to AC
B)AC to DC
C)voltage
Q10: Resistivity is measured in
A)ohms
B)ohm per meter
C)ohm meter
D)ohm
Q11: Component which obeys ohm's law is called
A)resistive
Q12: At constant temperature, resistance and cross-sectional area
Q13: Current and voltage are
A)directly related
B)inversely related
C)not related
D)gives
Q14: At threshold voltage, resistance of diode
A)decreases
B)increases
C)remains constant
D)varies
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