Quiz on Direct Current Voltage (DC)

What is the primary function of a battery in an electric circuit?

• To measure current

• To provide a constant voltage

• To divide voltage

• To act as a switch

How is an ammeter connected in a circuit?

• In parallel with the battery

• In series with the lamp

• In parallel with the lamp

• In series with the battery

What does a voltmeter measure?

• Current

• Voltage

• Resistance

• Power

In a series circuit, what happens to the current?

• It increases at each component

• It remains the same throughout

• It decreases at each component

• It is divided among the components

What is the law of uniqueness of voltages in a parallel circuit?

• I = I1 = I2

• I = I1 + I2

• U = U1 = U2

• U = U1 + U2

What happens when a lamp burns out in a parallel circuit?

• The branch acts as an open switch

• The voltage increases

• The current doubles

• The entire circuit stops working

What is the function of a multimeter?

• To measure resistance only

• To measure both voltage and current

• To measure only current

• To measure only voltage

What does the symbol 'U' represent in an electric circuit?

• Power

• Voltage

• Current

• Resistance

What is the correct connection for a voltmeter?

• In parallel with the battery

• In series with the lamp

• In parallel with the lamp

• In series with the battery

What is the maximum voltage across an opened switch?

• Constant

• Maximum

• Zero

• Variable