Calculating resistance, voltage, and current in electrical circuits
Quiz by Chris McElroy
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10 questions
Show answers
- Q1What is Ohm's Law?V=IR^2V=I/RP=IVV=IR30s
- Q2What is the unit of resistance?WattAmpereOhmVolt30s
- Q3What is the formula for calculating power in a circuit?P=VIP=V/RP=V^2/RP=I^2R30s
- Q4What is the formula for calculating current in a circuit?I=VRI=V/RI=V/R^2I=V+R30s
- Q5What is the formula for calculating voltage in a circuit?V=P/RV=I^2RV=I/RV=IR30s
- Q6What is the total resistance of two resistors in series with values of 5 ohms and 3 ohms?35 ohms8 ohms15 ohms2 ohms30s
- Q7What is the total resistance of two resistors in parallel with values of 5 ohms and 3 ohms?35 ohms1.875 ohms8 ohms15 ohms30s
- Q8What is the current through a 10 ohm resistor connected to a 20 volt battery?5 amps2 amps0.5 amps10 amps30s
- Q9What is the voltage across a 5 ohm resistor with a current of 2 amps?7.5 volts15 volts2.5 volts10 volts30s
- Q10What is the resistance of a circuit with a voltage of 12 volts and a current of 4 amps?3 ohms8 ohms24 ohms48 ohms30s