Magnetic Effects of Electric Current [NSO Level 1- Science Olympiad (SOF) Class 10]: Questions 1 - 5 of 71
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Question 1
Question MCQ▾
The source of electricity in a device is a battery, so the current passing through device is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Direct current | |
b. | Alternative current | |
c. | Varying current | |
d. | Magnetic current |
Question 2
Question MCQ▾
When a conducting current carrying wire is placed in magnetic field,
Choices
Choice (4) | Response | |
---|---|---|
a. | it՚s current starts decreasing | |
b. | It experiences Lorentz force | |
c. | it՚s current becomes zero | |
d. | it՚s current starts increasing |
Question 3
Question MCQ▾
The dynamo is working based on:
Choices
Choice (4) | Response | |
---|---|---|
a. | Change chemical energy into electric energy | |
b. | Change Electric energy into chemical energy | |
c. | Change electric energy into mechanical energy | |
d. | Change mechanical energy into electric energy |
Question 4
Question MCQ▾
Which of the following device used based on the principle of converting electric energy in to mechanical energy?
Choices
Choice (4) | Response | |
---|---|---|
a. | Electric Geyser | |
b. | Electric cell | |
c. | Electric generator | |
d. | Electric motor |
Question 5
Question MCQ▾
If a current carrying wire is placed in magnetic field directed in positive axis, and current of the wire is in negative direction, then according to Fleming՚s left hand rule the force exerted on wire is in:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |