Question 121
A 120 V circuit supplies a resistive load drawing 10 A. Approximately how much power is the load using?
Question 122
A 120 V branch circuit supplies a 60 W lamp. Approximately how much current does the lamp draw?
Question 123
A 120 V circuit supplies a 12 Ω resistive load. What is the current in the circuit?
Question 124
A 12 Ω resistor has 24 V across it. What is the current flowing through the resistor?
Question 125
A 120 V, 10 A load is connected to a branch circuit. Approximately how much power does the load consume?
Question 126
A 240 V single-phase load draws 15 A. What is the approximate power used by this load?
Question 127
A 120 V branch circuit supplies a 600 W load and an 800 W load simultaneously. Approximately how much current is drawn by the circuit?
Question 128
A 120 V circuit supplies a 24 Ω resistive load. What is the current in the circuit, ignoring any other impedance?
Question 129
A branch circuit has a measured current of 8 A and the circuit voltage is 120 V. What is the approximate power consumed by the connected load?
Question 130
A 120 V branch circuit measures 0.5 Ω from hot to neutral (including the load). What current will flow if this measurement is accurate and the circuit is energized?
Question 131
A 120 V circuit supplies a load that draws 6 A of current. Assuming purely resistive load, what is the approximate resistance of the load?
Question 132
A portable work light draws 1.5 A when connected to a 120 V circuit. Approximately how much power does the light use?
Question 133
A space heater is rated 1440 W at 120 V and is plugged into a general-use branch circuit. Approximately how much current does it draw?
Question 134
A 120 V circuit supplies a 15 ohm resistive load. What is the approximate current drawn by the load?
Question 135
Using Ohm's law, what is the current in a 120 V circuit with a resistance of 60 Ω?
Question 136
A lighting branch circuit has a measured resistance of 12 ohms and is supplied by 120 V. Approximately how much current will flow when the circuit is energized?
Question 137
A 1200 W resistive heater is connected to a 120 V branch circuit. Approximately how much current does the heater draw?
Question 138
A circuit contains three resistors in series: $R_1 = 10 \Omega$, $R_2 = 20 \Omega$, and $R_3 = 30 \Omega$. If the voltage source is $120$ volts, what is the total current flowing through the circuit?
Question 139
What is the result of multiplying the voltage (in volts) by the current (in amperes) in a DC circuit?
Question 140
A $200\text{ V}$ heater has a hot resistance of $15.5 \Omega$. If the voltage drops to $180 \text{ V}$, what is the new power output of the heater, assuming the resistance remains constant?
Question 141
A $240\text{ V}$ circuit has a true power of $1200 \text{ W}$ and a reactive power of $900 \text{ VAR}$. What is the total current draw in the circuit?
Question 142
A transformer has a primary winding of $600$ turns and a secondary winding of $120$ turns. If the primary voltage is $480\text{ V}$, what is the secondary voltage?
Question 143
A $120\text{ V}$ circuit is run in $1/2\text{-inch}$ EMT. The load on the circuit is $12 \text{ A}$. If the total resistance of the conductors is $0.2 \Omega$, what is the actual voltage at the load?
Question 144
A series circuit consists of an $80 \Omega$ resistor, a $100 \Omega$ resistor, and a $20 \text{ V}$ source. What is the power dissipated by the $100 \Omega$ resistor?
Question 145
A 120 V circuit supplies a 960 W resistive load. Approximately how much current does the load draw?
Question 146
What does Ohm's law state about the relationship between voltage (V), current (I), and resistance (R)?
Question 147
A 240 V single-phase water heater has a resistance of 19.2 Ω. Approximately how much current does it draw at rated voltage?
Question 148
A 120 V circuit supplies a 6 A load. Approximately how much power is the load using?
Question 149
A 240 V single-phase water heater has a resistance of 19.2 Ω. What is the approximate current draw of the heater?
Question 150
A 120 V circuit has a resistance of 24 ohms. What is the current flowing in the circuit?