Current test Flashcards
Whats the description of what voltage quantity is and its symbol and units?
A measure of how much energy the current has. SYMBOL: V volts voltmeter
Whats the description of the current quantity is and the symbol and units.
A measure of how many electrons pass a point in a circuit. SYMBOL: i UNITS: A amps ammeter
THE description of what the resistance quantity is . and rhe synbol and units
A measure of how much the current has been impeded. SYMBOL: R UNITS: 0 Ohms ohmeter
How are ammeters connected in a circuit? (series or parallel)
SERIES
When you charge your phone, the charging clock gets warm, why does thjs happen?
The resistance in the charger creates heat
How do fuses and circuit breakers protect our homes from electrical fires?
Fuses and circuit breakers are made to break the circuit if they sense that too much current is being drawn preventing fires
If when you plug in an old string of decorative lights connected in series, non of the bulbs light, does this mean all the bulbs burnt out?
the bukbs are probably not ALL burnt out because , if one bulb goes out ina. series, all the rest does too.
How do you know that the lifhts in your house are wired in parallel?
I know that the lights in my house are parallel because if i turn off one light , the rest of the lights remain lited up.
What happens to the current in a circuit if more resistors are added?
When more resistors are added, the chreent in a circuit DECREASES.