# Current Electricity (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 26 - 28 of 77

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## Question number: 26

» Current Electricity » Color Code for Resistors

MCQ▾

### Question

In the figure a carbon resistor has bands of different colors on its body as mentioned in the figure. The value of the resistance is

### Choices

Choice (4) Response

a.

3.3 k Ω

b.

2.2 k Ω

c.

5.6 k Ω

d.

9.1 k Ω

## Question number: 27

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

### Question

A micro-ammeter has a resistance of 100Ω and a full scale range of 50 μA. It can be used as a voltmeter or a higher range ammeter provided a resistance is added to it Pick the correct range and resistance combination

(1) 10V range with 200 k Ω resistance in series.

(2) 50V range with 10 k Ω resistance in series.

(3) 5 mA range with 1 Ω resistance in parallel.

(4) 10 mA range with 1 k Ω resistance in parallel.

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1,2 and 3

b.

1 and 2

c.

2 and 4

d.

1 and 3

## Question number: 28

» Current Electricity » Potentiometer

Assertion-Reason▾

### Assertion (Ꭺ)

The emf of the driver cell in the potentiometer experiment should be greater than the emf of the cell to be determined.

### Reason (Ꭱ)

The fall of potential across the potentiometer wire should not be less than the emf of the cell to be determined.

### Choices

Choice (4) Response

a.

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

b.

Both Ꭺ and Ꭱ are false

c.

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

d.

Ꭺ is false but Ꭱ is true

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