89. In an experiment to study dependence of current on the potential difference across a given resistor, students kept the plug key in the circuit closed for time T1 and then open for time T2.The time T1 and T2 for students P, Q, R and S are given in the table below.
The best choice of open and closed times is that of
student:
Student Closed time t1 seconds
P
Q
R
S
(a) P
(c) R
30
60
60
45
Opentimte2 seconds
60
30
15
15
(b) Q
(d) S
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Answer:
students P, Q, R and S are given in the table below.
The best choice of open and closed times is that of
student:
Student Closed time t1 seconds
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