The relationship between voltage, current and resistance in an electrical circuit is named after the physicist Georg Ohm - Junior Cycle Science - Question c - 2018
Question c
The relationship between voltage, current and resistance in an electrical circuit is named after the physicist Georg Ohm.
Use Ohm’s law to calculate the current in t... show full transcript
Worked Solution & Example Answer:The relationship between voltage, current and resistance in an electrical circuit is named after the physicist Georg Ohm - Junior Cycle Science - Question c - 2018
Step 1
Use Ohm's Law
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Answer
Ohm's Law states that the current (
I
) through a conductor between two points is directly proportional to the voltage (
V
) across the two points and inversely proportional to the resistance (
R
). This can be represented by the formula:
V=I×R
To find the current, we can rearrange this equation:
I=RV
Step 2
Substitute the Values
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Answer
Now, substituting the given values from the circuit:
Voltage (
V
) = 12 V
Resistance (
R
) = 6 Ω
We can calculate:
I=612
Step 3
Calculate the Current
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Answer
Performing the calculation:
I=2A
Thus, the current in the circuit is 2 A.
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