Ohm's Law Questions

• If voltage across a resistance doubles
• The efficiency rating of a power supply is determined by internal power loss.
• Heat produced by a resistor is generally a desirable effect.
• Doubling the voltage across a resistor will cut the current by half.
• The current through a resistor can be found by dividing the resistor's voltage by its ohmic value.
• If the current in the given circuit is increased to 24 mA, the source voltage must have tripled.
• Generally, increasing the resistance in a circuit will decrease the current.
• The voltage drop across a resistor is simply a difference of potential across that resistor.
• Power is a measure of how fast current is flowing.
• Current and voltage have a nonlinear relationship.
• The value of a resistor is in direct proportion to its power handling capabilities.
• Using 4 kWh of power is equivalent to using 2000 W of power for 2 h.
• ___ is a better way of expressing 7,500,000 W.
• The voltage across a ___ resistor is 12 V and the current through it is 500 µA.
• The ___ rating of a resistor will increase with an increase in the surface area of the resistor.
• If the voltage across a resistor ___, the current flowing through it will increase.
• The power rating for the resistor in the given circuit should be at least ___.
• The power rating for the resistor in the given circuit should be at least ______.
• Resistance and current are _________.
• The number of joules used in 1 second is always equal to the number of _______.