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10th Maharashtra Board
IMPORTANT
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Electromagnetic induction means

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Important Questions on Effects of Electric Current

EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 4
Explain the difference:
AC generator and DC generator
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 5

Which device is used to produce electricity? Describe with a neat diagram.

a. Electric motor

b. Galvanometer

c. Electric Generator (DC)

d. Voltmeter

EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 6
How does the short circuit form? What is its effect?
EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 7
Give Scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
MEDIUM
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 7
Give Scientific reason.
In the electric equipment producing heat e.g., iron, electric heater, boiler, toaster etc., an alloy such as Nichrome is used, not pure metals.
EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 7
Give Scientific reason.
For electric power transmission, copper or aluminium wire is used.
EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 7
Give scientific reason.
In practice, the unit kWh is used for the measurement of electrical energy, rather than joule.
EASY
10th Maharashtra Board
IMPORTANT
Science and Technology Standard Ten Part - 1>Chapter 4 - Effects of Electric Current>Exercise>Q 8
Which of the statement given below correctly describes the magnetic field near a long, straight current-carrying conductor?