If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is 120 mA 70 mA 50 mA 40 mA TRUE ANSWER : ? YOUR ANSWER : ?
The following resistors are in parallel across a voltage source: 220 , 470 , and 560 . The resistor with the least current is 220 560 470 impossible to determine without knowing the voltage TRUE ANSWER : ? YOUR ANSWER : ?
When an additional resistor is connected across an existing parallel circuit, the total resistance decreases remains the same increases by the value of the added resistor decreases by the value of the added resistor TRUE ANSWER : ? YOUR ANSWER : ?
When a 1.6 k resistor and a 120 resistor are connected in parallel, the total resistance is greater than 120 but less than 1.6 k less than 120 but greater than 100 less than 100 greater than 1.6 k TRUE ANSWER : ? YOUR ANSWER : ?
In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is 12 mA 0 A 48 mA 3 mA TRUE ANSWER : ? YOUR ANSWER : ?
Six resistors are in parallel. The two lowest-value resistors are both 1.2 k. The total resistance is less than 6 k is less than 1.2 k is greater than 1.2 k is less than 600 TRUE ANSWER : ? YOUR ANSWER : ?
Five light bulbs are connected in parallel across 110 V. Each bulb is rated at 200 W. The current through each bulb is approximately 1.8 A 9.09 A 2.2 A 137 mA TRUE ANSWER : ? YOUR ANSWER : ?
An ammeter has an internal resistance of 50 . The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately 50 55 9 5.5 TRUE ANSWER : ? YOUR ANSWER : ?
A set of Christmas tree lights is connected in parallel across a 110 V source. The filament of each light bulb is 1.8 k. The current through each bulb is approximately 610 mA 61 mA 18 mA 110 mA TRUE ANSWER : ? YOUR ANSWER : ?
Four 8 speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers 48 W 18 W 1.5 W 72 W TRUE ANSWER : ? YOUR ANSWER : ?