A bird sitting on a high tension electric wire does not get electrocuted because:
Ait does not form a closed path for the flow of current
Bthe body is earthed
CSit has high resistance
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Correct answer
A. it does not form a closed path for the flow of current
Explanation
Birds don’t get shocked when they sit on electrical wires because they are not good conductors of electricity. If the bird would touch the ground while sitting on the wire or flap its wings and touch another electric wirewith a different voltage, then it would get shocked and likely die by electrocution.
Correct answer
A. All P.E acceleration and restoring force are zero
Explanation
All P.E acceleration and restoring force are zero is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. V esc = -2 Vo
Explanation
V esc = -2 Vo is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. increases with increase in age
Explanation
increases with increase in age is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. maximum
Explanation
maximum is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. All of the above
Explanation
All of the above is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Millikan
Explanation
Millikan is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 7 Hz
Explanation
7 Hz is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. 3N & 6N
Explanation
3N & 6N is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. frequency lower than 20 Hz
Explanation
frequency lower than 20 Hz is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.