voltmeter
meterbridge
voltameter
potentiometer
Correct answer is D
No explanation has been provided for this answer.
720J
1200J
14400J
43200J
Correct answer is C
Q = \(\frac{V^2 t}{R}
= \frac{12^2 \times 10 \times 60}{6}\)
= 14400J
8.0 x 106 NC-1
4.0 x 106 NC-1
4.0 x 104 NC-1
2.0 x 104 NC-1
Correct answer is B
E = \(\frac{F}{Q} = \frac{80}{2 \times 10^{-5}}\)
= 4 x 10\(^6\) NC\(^{-1}\)
negative charges flows to the ground through the person's body
positive charges flow from the ground through his body to neutralize the negative charges
positive charges in the air neutralizes the negative charges the person is holding
negative charges will leak through the air
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about waves in pipes is correct?
for open pipes, there is only one end correction to be accounted for
for closed pipes, there are two end corrections to be accounted for
only odd harmonics are possible in closed pipes
all harmonics are possible in closed pipes
Correct answer is C
No explanation has been provided for this answer.