Current Electricity (NEET Physics): Questions 62 - 65 of 75

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Question number: 62

» Current Electricity » Potentiometer

MCQ▾

Question

The arrangement as shown in figure is called as

Circuit diagram consist of potentiometer, battery and a key

Circuit Diagram Consist of Potentiometer, Battery and a Key

In above circuit a key, a battery and potentiometer is connected

Choices

Choice (4) Response

a.

Potential subtracted

b.

Potential adder

c.

Potential multiplier

d.

Potential divider

Question number: 63

» Current Electricity » Electrical Resistance

MCQ▾

Question

How will reading in the ammeter Switch. A be affected if another identical bulb Q is connected in parallel to P as shown in the figure? The voltage in the mains is maintained at constant value

Circuit with bulbs P and Q, Ammeter and switch

Circuit With Bulbs P and Q, Ammeter and Switch

In circuit two bulbs P and Q are connected in parallel.

Choices

Choice (4) Response

a.

The reading will increase four fold.

b.

The reading will be double of previous one.

c.

The reading will not be affected.

d.

The reading will be reduced to one half.

Question number: 64

» Current Electricity » Electric Cell and Its Internal Resistance

Assertion-Reason▾

Assertion (Ꭺ)

In a simple battery circuit the point of lowest potential is negative terminal of the battery.

Reason (Ꭱ)

The current flows towards the point of the higher potential as it flows in such a circuit from the negative to the positive terminal.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 65

» Current Electricity » Kirchhoff's Laws

MCQ▾

Question

In the given circuit the current I 1 is

Circuit diagram consist of three resistor and two battery

Circuit Diagram Consist of Three Resistor and Two Battery

Here in figure 30Ω resistor connected in one branch, 40 Ω resistor and one battery connected in second branch and 40 Ω resistor and battery connected in third branch. And all three branches are parallel to each other. I1, I2 and I3 are the current passing through these branches respectively.

Choices

Choice (4) Response

a.

-0.4 A

b.

0.8 A

c.

-0.8 A

d.

0.4 A

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