# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 515 - 518 of 2320

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## Question number: 515

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MCQ▾

### Question

In the figure, the equivalent resistance between A and B is- Circuit Diagram with Eight Equal Resistors RIn circuit eight equal resistors R are connected between A and B.

### Choices

Choice (4)Response

a.

3R

b.

c.

d.

R

## Question number: 516

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MCQ▾

### Question

A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10 -7 ohm-meter and the current passing through it is 0.1 ampere; cross-section of the wire is 10 -6 m 2. The potential gradient along the potentiometer wire is

### Choices

Choice (4)Response

a.

10 -2 V/m

b.

10 -6 V/m

c.

10 -8 V/m

d.

10 -4 V/m

## Question number: 517

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MCQ▾

### Question

The arrangement as shown in figure is called as Circuit Diagram Consist of Potentiometer, Battery and a KeyIn above circuit a key, a battery and potentiometer is connected

### Choices

Choice (4)Response

a.

b.

Potential subtracted

c.

Potential multiplier

d.

Potential divider

## Question number: 518

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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 SwitchIn 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 not be affected.

c.

The reading will be double of previous one.

d.

The reading will be reduced to one half.

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