NSO Level 1- Science Olympiad (SOF) Class 10: Questions 213 - 216 of 986

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Question number: 213

» Electricity

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MCQ▾

Question

The given symbol is used for representing ________ in a circuit.

Image of the symbol

Image of the Symbol

Choices

Choice (4)Response

a.

A wire joint

b.

Electrical bulb

c.

Variable resistance

d.

Wire crossing without joining

Question number: 214

» Electricity

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MCQ▾

Question

The advantages of connecting electrical devices in parallel with the battery instead of connecting them series is

Choices

Choice (4)Response

a.

Potential difference across each appliance is equal to the supplied voltage

b.

No division of voltage among the appliance when connected in parallel

c.

Total effective resistance of the circuit can be reduced by connecting electrical appliance in parallel

d.

All a. , b. and c. are correct

Question number: 215

» Reproduction in Organisms

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MCQ▾

Question

Choose correct statements

Statement 1: Monoecious flower undergo self and cross-pollination

Statement 2: Dioecious flower undergo cross pollination

Choices

Choice (4)Response

a.

Only Statement 1 is correct

b.

Statements 1 and 2 are correct

c.

Statements 1 and 2 are incorrect

d.

Only Statement 2 is correct

Question number: 216

» Electricity

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MCQ▾

Question

Read the given statements and mark the correct option

Statement 1: The device, which is used to vary the resistance in an electrical circuit; without changing the voltage from the source; is known as rheostat

Statement 2: Galvanometer is device to detect current in an electrical circuit

Choices

Choice (4)Response

a.

Statements 1 and 2 are correct

b.

Only statement 1 is correct

c.

Statements 1 and 2 are incorrect

d.

Only statement 2 is correct

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