If you triple the voltage across a resistor while at the same time cutting its resistance to one-fifth its original value, what happens to the current in the resistor?
If you triple the voltage across a resistor while at the same time cutting its resistance to one-fifth its original value, what happens to the current in the resistor?
it increases by 15 times | |
it doubles | |
it increases by five times | |
you can't tell from the data
given |
as per ohms law V = iR
if V is tripled and R is reduced to 1/5th
i = v/R
i' = 3V/R/5 = 15 i
it increases by 15 times
If you triple the voltage across a resistor while at the same time cutting its resistance...
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