DC Series Circuits Quiz

What is the total resistance in a series circuit with a 10 ohm and a 5 ohm resistor?

• 20 ohms

• 15 ohms

• 10 ohms

• 5 ohms

How is current measured in a circuit?

• Using a multimeter

• Using a voltmeter

• Using a resistor

• Using an ammeter

What happens to the current as more resistors are added in series?

• It remains the same

• It increases

• It fluctuates

• It decreases

What is the unit of resistance?

• Volts

• Amperes

• Ohms

• Watts

What is the voltage drop across a 10 ohm resistor with a current of 0.6 amps?

• 0.6 volts

• 6 volts

• 9 volts

• 10 volts

In a series circuit, how does voltage behave across each resistor?

• It is the same across all resistors

• It is divided among the resistors

• It increases with each resistor

• It decreases with each resistor

What is the formula to calculate power consumption in a circuit?

• Power = Voltage / Resistance

• Power = Voltage x Current

• Power = Current / Voltage

• Power = Resistance x Current

What is the effect of increasing resistance on an LED's brightness in a series circuit?

• It makes the LED brighter

• It has no effect

• It dims the LED

• It causes the LED to flicker

What is the total voltage in a series circuit with two 9 volt batteries?

• 27 volts

• 9 volts

• 36 volts

• 18 volts

What is the relationship between voltage, current, and resistance in a circuit?

• Voltage = Current - Resistance

• Voltage = Current + Resistance

• Voltage = Resistance / Current

• Voltage = Current x Resistance