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Science Olympiad Test: Electricity- 1 - Class 10 MCQ


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10 Questions MCQ Test Olympiad Preparation for Class 10 - Science Olympiad Test: Electricity- 1

Science Olympiad Test: Electricity- 1 for Class 10 2024 is part of Olympiad Preparation for Class 10 preparation. The Science Olympiad Test: Electricity- 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Science Olympiad Test: Electricity- 1 MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Science Olympiad Test: Electricity- 1 below.
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Science Olympiad Test: Electricity- 1 - Question 1

The SI unit of electric current is ________.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 1

The SI unit of electric current is Ampere.

Science Olympiad Test: Electricity- 1 - Question 2

Electric current is measured using _________.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 2

Ammeter is a device used to measure electricity.

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Science Olympiad Test: Electricity- 1 - Question 3

Materials which do not allow electricity to pass through are known as ___________.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 3

Insulators do not pass electric current through them.

Science Olympiad Test: Electricity- 1 - Question 4

Electric potential is a ______.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 4

Since electric potential has only magnitude and no direction, it is a scalar quantity.

Science Olympiad Test: Electricity- 1 - Question 5

Copper is used in electric transmission lines because _____________.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 5

Since copper offers low resistivity, it is an ideal material to be used in electric transmission.

Science Olympiad Test: Electricity- 1 - Question 6

Calculate the equivalent resistance of the circuit shown below:

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 6

It is a parallel combination with two resistors each in series.

Science Olympiad Test: Electricity- 1 - Question 7

How much work is done in moving a charge of 5 C from a point in circuit at 220 volts to another point at 240 volts?

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 7

W = QV = 5 × (240 – 220) = 100 J

Science Olympiad Test: Electricity- 1 - Question 8

The SI unit of resistance is ____________.

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 8

Ohm is the SI unit of resistance.

Science Olympiad Test: Electricity- 1 - Question 9

Three resistors are connected as shown below in a closed circuit. What is the effective resistance of the whole circuit?

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 9

Re = 4 Ω + Rp of 2 resistors of 6 Ω each
1/Rp = 1/6 + 1/6 ⇒ Rp = 3 Ω
∴ Re = 4 Ω + 3 Ω = 7 Ω

Science Olympiad Test: Electricity- 1 - Question 10

The proper presentation of series combination of cells of obtain maximum potential is

Detailed Solution for Science Olympiad Test: Electricity- 1 - Question 10

The proper representation of series combination of cells is that the negative terminal of the first cell is connected to the positive terminal of the second cell and the negative terminal of second cell is connected to the positive terminal of the third cell and so on.

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