At threshold voltage, resistance of diode
A) decreases
B) increases
C) remains constant
D) varies depending on the direction of voltage
Correct Answer:
Verified
Q9: Threshold voltage at which LED emits light
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
Q15: Resistance of a particular wire depends upon
A)size
Q16: Resistance of metal is affected by
A)presence of
Q17: If current and potential difference are directly
Q18: Effect of diffraction is greatest if waves
Q19: Visible light has wavelength of
A)5 × 10-7
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