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2 cards from this section. Quick, good the night before a test.
What is the heating effect of electric current?
Think about what happens to wires when current flows through them.
Name a common appliance that uses the heating effect.
Consider devices that require heat to work.
What does Joule's Law describe?
Consider the heat generated from electrical devices.
True or False: Higher current results in higher heat production according to Joule's Law.
Focus on Joule's equation involving current.
An electric iron operates at a voltage of 240 V and has a resistance of 12 Ohms. Calculate the power it dissipates.
Remember the power formula relating voltage and resistance.
If a fuse rated at 10 Amperes melts when a current of 15 Amperes flows, what does this indicate about the circuit?
Consider why we use fuses for circuit protection.
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