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1. A current of 0.2 A flows through a 500 Ω
resistor.
Voltage V is:
V =
Current x Resistance
V = 0.2 x 500
V = 100 V
2. Resistors in
series:
Two resistors are connected in series, R1 = 100 Ω and R2 = 1000 Ω.
The total resistance
R = R1 + R2
R = 100 + 1000
R = 1100 Ω
3.
-
For a given
voltage, increasing the resistance in a series circuit decreases
the current.
.
-
For a given
voltage, decreasing the
resistance in a series circuit increases the current.
Higher tier only:
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