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5 cards from this section. Quick, good the night before a test.
What instrument do you use to measure current in a circuit?
Remember the 'A' for Amperes.
What is the function of a voltmeter?
Think of the ‘V’ for Volts.
What is the primary function of an ammeter?
Think of 'A' for Amps!
True or False: A fuse can be reset after it melts.
Consider what happens after a fuse has blown.
You have an electrical circuit with an ammeter, voltmeter, and a resistor. The ammeter reads 2 A, the voltmeter reads 12 V. Calculate the resistance of the resistor using Ohm's Law. Explain the steps taken.
Recall that Ohm's Law defines the relationship between voltage, current, and resistance.
A household circuit has a fuse rated at 10A. If the current exceeds this rating and the fuse blows, discuss the consequences and safety measures involving circuit breakers in comparison.
Consider how reliability and safety are enhanced with modern circuit protection systems.
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