Experimental Skills (NEET Physics): Questions 47 - 50 of 66

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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.

Ie=Ib+Ic

b.

IC=Ib+Ie

c.

Ie=IcIb

d.

Ib=Ie+Ic

Question number: 48

» Experimental Skills » Multimeter

MCQ▾

Question

To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective.

Circuit diagram for determine two resistors.

Circuit Diagram for Determine Two Resistors.

To determine the equivalent resistance of two resistors when connected in series, a student arranged given circuit.

Which of the following mistakes has been committed by him in setting up the circuit?

Choices

Choice (4) Response
a.

Terminals of voltmeter are wrongly connected

b.

Position of ammeter is incorrect

c.

Position of voltmeter is incorrect

d.

Terminals of ammeter are wrongly connected

Question number: 49

» Experimental Skills » Potentiometer

MCQ▾

Question

The potential gradient of a potentiometer can be increased by which of the following operation?

Choices

Choice (4) Response
a.

By increasing the area of cross-section of potentiometer wire.

b.

By decreasing the current through it.

c.

By using a wire of material of low specific resistance. when A is decreased, k will increase.

d.

By decreasing the area of cross-section of the potentiometer wire.

Question number: 50

» Experimental Skills » P-N Junction Diode

MCQ▾

Question

Four diodes shown in the following diagrams, which one is reverse biased?

Choices

Choice (4) Response
a.
Diagram of diode and resistance choice A

Diagram of Diode and Resistance Choice A

Figure shows the circuit diagram, in which pn-junction diode connected with resistance between two different potential.

b.
Diagram of diode and resistance choice B

Diagram of Diode and Resistance Choice B

Figure shows the circuit diagram, in which pn-junction diode connected with resistance between two different potential.

c.
Diagram of diode and resistance choice C

Diagram of Diode and Resistance Choice C

Figure shows the circuit diagram, in which pn-junction diode connected with resistance between two different potential.

d.
 Diagram of diode and resistance choice D

Diagram of Diode and Resistance Choice D

Figure shows the circuit diagram, in which pn-junction diode connected with resistance between two different potential.

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