Series Circuits Questions and Answers
Series Circuits questions with answers are vital for students studying the flow of current and voltage distribution in electrical networks. Found in aptitude questions with solutions PDF for exams like GATE, BEL, and DRDO, this topic tests understanding of Ohm’s law, Kirchhoff’s laws, and equivalent resistance. In a series circuit, current remains constant while voltage divides across components. Mastering such concepts helps in analyzing complex electronic systems and solving competitive exam problems quickly and accurately. Practicing aptitude questions online sharpens both theoretical and problem-solving skills.
Series Circuits
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21 questions
2. If the resistance total in a series circuit doubles, current will:
- be the same
- be doubled
- reduce source voltage
- be halved
3. Power is defined as:
- the rate at which work is done
- work
- the conversion of energy
- joules
4. Kirchhoff’s voltage law states that:
- the sum of the voltage drops in a series circuit is equal to the total applied voltage
- the algebraic sum of the resistances is equal to the sum of the voltages
- the algebraic sum of the individual currents around a closed loop is zero
- the voltages developed across each element in a series circuit are identical
5. If series current doubles, then:
- resistance is halved
- voltage is doubled
- voltage is reduced
- resistance is doubled
6. A short circuit has:
- too much resistance
- no conductance
- no resistance
- low current
7. lohms, 470 ohms, and 3300 ohms are in series with a 25-volt source, what is the total circuit current?
- 210 mA
- 5.2 mA
- 4.7 mA
- .007 A
8. A string of resistors in a series circuit will:
- divide the source voltage in proportion to their values
- reduce the power to zero
- cause the current to divide
- increase the source voltage in proportion to the values
9. Given a series circuit containing resistors of different values, which statement is not true?
- The current through each resistor is the same.
- The sum of the voltage drops across each resistive element will be equal.
- The total resistance is the sum of the value of the resistors.
- The voltage drop across each resistor is the same.
10. With 20 V applied, an 8-ohm resistor is in series with a lamp. When the lamp is removed, what voltage will be read across the lamp socket?
- 0 V
- 8 V
- 12 V
- 20 V