Current Electricity (BITSAT Physics): Questions 12 - 16 of 27

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Question number: 12

» Current Electricity » Temperature Dependence of Resistance

MCQ▾

Question

A wire has resistance of at and resistance at . The temperature coefficient of resistance of the wire is –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 13

» Current Electricity » Kirchhoff's Laws

MCQ▾

Question

Two batteries of emf and having the internal resistance of and respectively are connected in circuit with a resistance of as shown in the figure. The current and potential difference between the points and are

 Circuit diagram with two resistors

Circuit Diagram With Two Resistors

In figure circuit diagram with two resistors is shown.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 14

» Current Electricity » Temperature Dependence of Resistance

MCQ▾

Question

Which of the following has negative temperature coefficient of resistance?

Choices

Choice (4) Response

a.

Copper

b.

Aluminum

c.

Iron

d.

Germanium

Question number: 15

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

Which of the following is secondary cell?

Choices

Choice (4) Response

a.

Voltaic cell

b.

Daniel cell

c.

Leclanche cell

d.

Edison cell

Question number: 16

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

A heater coil connected to a supply of a dissipating some power . The coil is cut into half and the two halves are connected in parallel. The heater now dissipates a power the ration of power is –

Choices

Choice (4) Response

a.

b.

c.

d.

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