Asked by Priya
A digital voltmeter with high internal resistance gives a maximum reading of 2.0 V. It is used to determine current by measuring the potential difference across a standard resistor S through which current has passed. What should the resistance of S be to measure currents up to:
a) 0.1A
b) 5A
a) 0.1A
b) 5A
Answers
Answered by
Damon
V= i R
2 = .1 R
and
2 = 5 R
2 = .1 R
and
2 = 5 R