Problema Solution
The formula for Ohm's Law is E=IR where E represent voltage measured in volts, I represents current measured in amperes, and R represents resistance measured in ohms.
a.Solve the formula for R.
b. Suppose a current of 0.25 ampere flows through a resistor connected to a 12-volt battery. What is the resistance in the circuit?
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a.Solve the formula for R
E=IR divide both sides by I
E/I = R
R = E/I
b. Suppose a current of 0.25 ampere flows through a resistor connected to a 12-volt battery. What is the resistance in the circuit?
I = 0.25 A
E = 12 V
we plug these values into:
R = E/I
R = 12/0.25
R = 48 ohms
the resistance of the circuit is 48 ohms.