In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
true
V = IR Where, V = voltage I = current R = resistance Thus if resistance is increased with constant voltage current will decrease
As voltage is increased, the electric current in a wire also increases because the relationship between voltage, current, and resistance is described by Ohm's Law (V = IR). If resistance remains constant, a higher voltage will result in a higher current flowing through the wire.
Correct Answer= "the current will increase"
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
In an alternating current circuit the voltage can be stepped up ordown efficiently with a transformer.
Nothing can change electric current to voltage. You can compare "current " to rate of flow, while "voltage" is the energy level. Transformers can be used to increase or decrease the voltages of alternating current as is done from 'street power' to domestic power.
An electric current through a resistive circuit can be increased by decreasing the resistive load or increasing the voltage of the circuit.
Ohms Law says Voltage = Current x Resistance. Hence if voltage rises, so will current.
The device is called a "variac' and it is a type of transformer. It has a variable voltage ouput.
Because power is power. If you maintain the same power, while increasing the voltage, you must decrease current. P=IE.