If the resistance of a resistor which is in series with two other resistors is doubled
- the current in that resistance is doubled.
- the volts drop across that resistor increases.
- the current in that resistance is halved.
Explanation from PART66Online
In a series circuit the same current flows through every resistor, so doubling one resistor cannot double or halve the current in it alone. Because that resistor now takes a larger share of the total resistance, by Ohm's law (V = IR) the voltage dropped across it increases.
S
Shawez asked · 27 Feb 2015
why cant it be current halved?
Community Comments (1)
K
kahungu
23 Apr 2015
The current in series arrangement is constant hence the p.d increase.
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