# When the diode is forward biased, it is equivalent to

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When the diode is forward biased, it is equivalent to

When the diode is forward biased, it is equivalent to An On switch

## Related questions

When current dramatically increases, the voltage point on the diode forward V-I characteristic curve is called the  A) Breakdown voltage B) Knee voltage C) Barrier voltage D) Both B) and C) are true

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When biased correctly, a zener diode:

For the active mode BJT operation (A) Emitter Base Junction is Forward Biased and Collector Base Junction is Forward Biased (B) Emitter Base Junction is Reverse Biased and Collector Base Junction is Reverse Biased (C) Emitter Base Junction is Forward Biased and Collector Base Junction is Reverse Biased (D) Emitter Base Junction is Reverse Biased and Collector Base Junction is Forward Biased

What is forward biased?

To turn a UJT ON, the forward bias on emitter diode should be:  1. more than the peak point voltage 2. less than the peak point voltage 3. Equal to the peak point voltage 4. Equal to the stand - off voltage

A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:   a. 50W b. 40W c. 25W d. 10W

What is the equivalent resistance of one limb A when delta connection is transformed in to star?  (A) R1R3/R1+R2+R3 (B) R2R3/R1+R2+R3 (C) R1R2R3/R1+R2+R3 (D) R1+R2+R3

How much time a diode takes to switch ON in forward bias condition.

A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode

The region consisting of holes and electrons near the p-n junction of a diode is (A) diffusion region (B) neutral zone (C) recombination region (D) depletion region

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A forward-biased PN-junction,  (A) results in increase in diffusion current  (B) results in increase in drift current  (C) results in decrease in drift current  (D) results in decrease in diffusion current

When the SCR conducts, the forward voltage drop will   (a) 0.7 V at all load current (b) 2 to 2.5 V at all load current (c) increases slightly with load current (d) remains constant with load current

When an NPN transistor is properly biased then most of the electrons from the emitter   (A) recombine with holes in the base (B) recombine in the emitter itself (C) pass through the base to the collector (D) are stopped by the junction barrier

The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of (A) 1.5V (B) 2.5V (C) 3.5V (D) 4.5V

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A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω

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The arrow direction in the diode symbol indicates

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Explain the forward bias characteristics of a P-N Junction diode.

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The emf induced in a coil is 1 volt when current in it changes from 0 to 100 mA in time 10mS. Its inductance (in mH) value is  A) 10 B) 50 C) 100 D) 1000

When a resistor R is connected to a current source, it consumes a power of 18 W. When the same R is connected to a voltage source having the same magnitude as the current source, the power absorbed by R is 4.5 W. The magnitude of the current source and the value of R are  (A) √18A and 1Ω (B) 3A and 2Ω (C) 1A and 18Ω (D) 6A and 0.5Ω

When the initial conditions of a system are specified to be zero it implies that the system is?

A power diode has lightly doped n type substrate sandwiched between heavily doped p and n regions  (a) to increase reverse breakdown voltage (b) to reduce ohmic loss under forward bias (c) to decrease switching time of the power diode (d) to improve transient behaviour of the diode

Define i)P-N junction diode ii) Depletion layer iii)Forward bias iv)Reverse bias of P-N junction diode

Why donor and receiver atoms can't move when sufficient voltage is supplied if they have charge Thanks

The MOSFET to act as an amplifier is biased in  (A) cut-off region (B) saturation region (C) triode region (D) any of the above regions

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A certain appliance consumes 350 W. When it is allowed to run continuously for 24 days, it consumes electrical energy equal to: A. 20.16 kWh B. 201.6 kWh C. 2.01 kWh D. 8.4 kWh

A current is said to be alternating when it changes in : -  a) Magnitude only b) Direction only c) Both magnitude and direction d) None

When the temperature of a ferromagnetic material exceeds the Curie temperature, it behaves similar to a

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When a dipole antenna of 1/8 length has an equivalent total resistance of 1.5 Watt then the efficiency of the antenna is   (A) 0.89159% (B) 8.9159% (C) 89.159% (D) 891.59%

Which of the following is not equivalent to watts? (1) Amperes*volts (2) (Amperes)2 *ohm (3) Amperes/volt (4) Joules per second