0
An electric heater draws a current of 5 amps and its element has resistance of 50 ohms - if it's switched on for 5 minutes calculate the energy in kilo joule?
Wiki User
∙ 13y ago
375 kj
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
When wires are connected to the terminals of a battery. what causes electric current in the circuit?
The resistance of the load is what causes an electric current to flow in a circuit.
How do you calculate the voltage in a circuit with a resistance of 20hms and a currents of 6?
Use Ohm's Law. In this case, multiply the resistance by the current.
Electric current flows in a wire which is opposed by what?
Resistance, which is measured in ohms. long wires and heat are the main cause of resistance increases.
If voltage is high will the resistance be high?
The electric resistance is related to the diameter and extension of the wire submitted to a determined voltage which will determine the electric current flowing into the wire.AnswerVoltage has no effect on resistance. Resistance is determined by the length, cross-sectional area, and resistivity of a material (resistivity is affected by temperature, so temperature indirectly affect resistance).
How did Oersted discover the relationship between an electricity and magnetism?
He used an electric current to affect the needle of a compass.
How do we calculate?
V = I x R V = voltage, I = Current, R = Resistance or it can be calculate like this V = P / I V = Voltage, P = Electric Power, I = Current
How do we calculate voltage?
V = I x R V = voltage, I = Current, R = Resistance or it can be calculate like this V = P / I V = Voltage, P = Electric Power, I = Current
What will an electric current follow?
An electric current follows the path of least resistance.
The current in an electric current varies inversly as the resistance when the current is 25 amps the resistance is 16ohms What is the current when the resistance is 10ohms?
40 A -providing the voltage remains constant.
What is the difference between a resistance and a capacitor?
resistance refers to the resistance of flow of electric current wile a capacitor is an electric device that stores energy.
What is the path that an electrical current travels?
electric current
Would increasing the resistance increase electric current?
no
What property of a wire increases when it is made thinner?
It's resistance to electric current increases.
What path with an electric current always follow?
"least resistance"
Do living cells have a high resistance to electric current?
yes
What effect does heat have on electric current flow?
It increases resistance.
What is expended by the electric current in order to overcome resistance?
energy
