Experimental Skills (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 44 - 47 of 67

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Question number: 44

» Experimental Skills » P-N Junction Diode

MCQ▾

Question

Which of the following statement is wrong regarding a p-n junction diode?

Choices

Choice (4) Response

a.

When the p-type section is connected to the negative terminal and the n-type section to the positive terminal of the battery the diode is said to be reverse biased

b.

When the p-type section is connected to the positive terminal and the n-type section to the negative terminal of the battery the diode is called forward biased

c.

When the diode is in reverse biased mode a forward current flows

d.

When the diode is in forward biased mode a forward current flows.

Question number: 45

» Experimental Skills » Diode Identification

MCQ▾

Question

An LED operates under which biasing condition?

Choices

Choice (4) Response

a.

Reverse bias

b.

Forward bias

c.

Can operate both in forward and reverse bias

d.

All of the above

Question number: 46

» Experimental Skills » Meter Bridge

MCQ▾

Question

To calculate an unknown resistance with the help of a meter bridge why is it advised to change the gap with the known and unknown resistance?

Choices

Choice (4) Response

a.

To eliminate the resistance of the gap.

b.

To eliminate the resistance of the connecting wire and copper strip

c.

To include the resistance of the connecting wire and copper strip

d.

To balance the known and unknown resistance.

Question number: 47

» Experimental Skills » Transistor

MCQ▾

Question

How are the currents flowing in the emitter, base and the collector related to each other?

Choices

Choice (4) Response

a.

b.

c.

d.

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