วิทยาศาสตร์EMI

In a series circuit with a 12 V battery and three resistors of 5 Ω, 10 Ω, and 15 Ω, what is the current flowing through the circuit?

• 0.6

• 0.4

• 0.2

• 0.8

A parallel circuit has two resistors, 20 Ω and 30 Ω, connected to a 24 V power supply. What is the total current drawn from the power supply?

If a resistor of unknown value is placed in series with a 10 Ω resistor, and the combination is connected to a 30 V supply, drawing a current of 1.5 A, what is the value of the unknown resistor?

A power supply provides 48 V to a parallel circuit with three resistors: 8 Ω, 12 Ω, and 24 Ω. What is the total current supplied by the power supply?

In a circuit with a 24 V battery, a 6 Ω resistor, and an unknown resistor in series, the current is measured to be 2 A. What is the value of the unknown resistor?

A complex circuit has a 10 Ω resistor in series with a parallel combination of a 20 Ω resistor and a 30 Ω resistor, connected to a 60 V power supply. What is the total current flowing through the circuit?

A circuit contains a 12 Ω resistor and an unknown resistor in parallel, connected to a 36 V power supply. The total current from the power supply is 6 A. What is the value of the unknown resistor?

• 18

• 16

• 12

• 14

A 10 Ω resistor and a 15 Ω resistor are connected in series with a 9 V battery. What is the voltage drop across the 15 Ω resistor?

• 6.4

• 2.6

• 4.6

• 5.4

A circuit has a total power dissipation of 72 W and is powered by a 24 V supply. If the circuit consists of a single resistor, what is the value of the resistor?

An iron that consumes 3 amperes of current when used with household electricity.It can be used for a long time in the field and will consume 1unit of electricity

• 87

• 97

• 96

• 67