Magnetic Effects of Electric Current (NSO Level 1- Science Olympiad (SOF) Class 10): Questions 1 - 5 of 58
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Question number: 1
» Magnetic Effects of Electric Current
Question
No force acts on a current carrying conductor when it is placed
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Perpendicular to the magnetic field |
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| b. | Far away from the magnetic field |
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| c. | Parallel to the magnetic field |
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| d. | Inside a magnetic field |
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Question number: 2
» Magnetic Effects of Electric Current
Question
If the key in the arrangement as shown below is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are
The Horizontal Plane ABCD
The horizontal plane ABCD
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Straight lines parallel to each other |
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| b. | Elliptical in shape |
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| c. | Concentric circles near the point O but of elliptical shapes as we go away from it |
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| d. | Concentric circles |
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Question number: 3
» Magnetic Effects of Electric Current
Question
Which of the following is not true?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Magnetic field inside solenoid is uniform |
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| b. | To find the direction of Magnetic field, Right Thumb Rule is used |
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| c. | Magnetic field has magnitude nut not direction. |
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| d. | All of the above |
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Question number: 4
» Magnetic Effects of Electric Current
Question
A circular coil and a bar magnet recede from each other with the same velocity. Then,
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | An emf will be induced in the magnet |
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| b. | There will be no induced emf in the coil |
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| c. | There will be an induced emf in the coil |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 5
» Magnetic Effects of Electric Current
Question
Choose the correct option. Different ways to induce current in a coil is
(i) By keeping the magnet in a fixed position and moving the coil towards and away from the magnet
(ii) By pushing or pulling a bar magnet into or away from a coil
(iii) If a coil is moved rapidly between the two poles of a hours-shoe magnet, then an electrical current is induced in the coil
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | (i) and (iii) |
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| b. | (ii) and (iii) |
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| c. | (i) and (ii) |
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| d. | (i), (ii) and (iii) |
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