4 amperes will flow through a 10 Ω resistor if 20 volts are placed across the resistor.

More Questions from Resistance and Power

• The resistive track of a rheostat or potentiometer can be classified as having either a linear or tapered resistance.
• Carbon composition resistors are the most common and the least expensive type of fixed-value resistor.
• The maximum potential a material can withstand without rupture is called breakdown voltage.
• A protoboard is used to make experimental circuits.
• A digital voltmeter can be used to measure resistance.
• Variable resistors have problems with the wiper making contact.
• A 12-volt battery is delivering 3 amperes to a resistor. The power dissipated by the resistor is 4 watts.
• Fixed-value resistors can internally short-circuit.
• A load resistance is the resistance of the load.
• Resistance is inversely proportional to current.

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