# Current Electricity (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 29 - 33 of 77

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## Question number: 29

» Current Electricity » Kirchhoff's Laws

MCQ▾

### Question

Kirchhoff’s laws are based on conservation of

1. Charge
2. potential
3. Energy
4. Mass

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: 30

» Current Electricity » Metre Bridge

MCQ▾

### Question

In Meter Bridge or Wheatstone bridge for measurement of resistance, the known and the unknown resistances are interchanged. The error so removed is

### Choices

Choice (4) Response

a.

Index error

b.

Random error

c.

Due to temperature effect

d.

End correction

## Question number: 31

» Current Electricity » Series and Parallel Combinations of Resistors

MCQ▾

### Question

The voltmeter shown in fig, reads 6V across the 60Ω resistors. Then the resistance of the voltmeter is-

### Choices

Choice (4) Response

a.

0 Ω

b.

200 Ω

c.

300 Ω

d.

∞ Ω

## Question number: 32

» Current Electricity » Electrical Energy and Power

MCQ▾

### Question

An electric lamp is marked 60 W, 230 V. The cost of a 1 kWh of energy is Rs. 1.25. The cost of using this lamp 8 hr a day for 30 days is (approximately)

### Choices

Choice (4) Response

a.

Rs 20

b.

Rs 16

c.

Rs. 10

d.

Rs 18

## Question number: 33

» Current Electricity » Resistances of Different Materials

MCQ▾

### Question

A voltmeter can measure up to 25 volt and its resistance is 1000 Ω . The resistance required to add with voltmeter to measure up to 250 volt will be

### Choices

Choice (4) Response

a.

900 Ω

b.

2500 Ω

c.

1000 Ω

d.

9000 Ω

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