The equation that you are looking for is I = E/R. Amps = 120/20 = 6 amps. This is one of the basic equations of Ohm's Law.
6 amps
The "hot" wire and the neutral wire both carry current (the same amount, in fact) when a load is connected to complete the circuit. The ground wire never carries current except when a fault-to-ground situation occurs. Yes, neutral and ground wires should both be at ground potential, but NO they should not be connected at the outlet.
Ohm's Law Volts = Current x Resistance Amps = V / R 110 / 20 = 5.5 Amps
A circuit breaker is a device that opens its contacts in order to open the circuit in case of current overload. A differential circuit breaker is a device that opens the circuit in case of leakage (current measured on the phase line is differentthan the current returned to neutral line); therefore protects users from electric shocks.To more understand how it operates, consider the following:Say that your electrical wall outlet is connected to a differential breaker. When plugging let's say a hair dryer to it, the current traveling on the phase line (going into the hair dryer and out to the neutral line of the wall outlet) equals but in reverse direction of the current returned to the neutral line, thus the difference is zero. Now let's say this hair dryer got faulty and fraction of the current coming from the outlet phase line travels through your body and return to earth (considering that you are not electrically isolated from the ground). Thus the current in neutral line is less than the current on phase line; at this moment the difference is not zero and breaker opens to protect you from getting electrocuted.
ten lights per curcuitCircuit loadingIn Canada there shall be not more that 12 outlets on any 2 wire branch circuit. Such outlets shall be considered to be rated at not more that 1 amp per outlet. Where the connected load is known, the number of outlets may exceed 12 providing the load current does not exceed 80 % of the rating of the over current device protecting the circuit.
Branch circuit loading In Canada the CEC states that there shall be not more than 12 outlets on any 2-wire branch circuit. These outlets shall be considered to be rated at not less than 1 amp per outlet Where the connected load is known, the number of outlets shall be permitted to exceed 12, provided that the load current does not exceed 80% of the rating of the over current device protecting the circuit. For example on a 15 amp breaker, 15 x 80% = 12 amps, hence the standard of 12 outlets on any 2-wire branch circuit. On a 20 amp breaker, 20 x 80% = 16 amps. So from a 20 amp breaker this allows 16 outlets on a 2-wire branch circuit as long as the outlets are not considered to be rated at less than 1 amp per outlet. The definition of an outlet is a point in the wiring installation at which current is taken to supply utilization equipment. What this means is that if a light switch and a fixture outlet were on the same 2-wire branch circuit they would be subtracted from the maximum count of 12 receptacle outlets on the circuit which would leave 10. If the light fixture draws 3 amps plus the switch outlet, then the total circuit outlet count would be reduced to 8 receptacle outlets (12 -- 3 -- 1 = 8). On a standard specification home most electricians will wire one circuit per room, the outlet count usually never reaches the maximum of 12 outlets.
Usually a circuit is connected to a power source, which could be a battery or an outlet. When this happens current flows through the circuit. The power supply raises electrical charges through the required potential difference, and then in the circuit the charges flow down the potential gradient giving up their energy.
6
The current is 0.83 amps on 120 v or 0.42 amps on 240 v.
Direct current is a flow of electricity which only goes one way. Batteries, for example, produce direct current, so the current must flow all the way through a circuit and back into the battery to work. Alternating current is what comes out of a wall outlet, and it alternates in both directions, with current flowing in and out of the outlet.
As many as you like but the total current taken is limited by the circuit breakers.
Direct current is a flow of electricity which only goes one way. Batteries, for example, produce direct current, so the current must flow all the way through a circuit and back into the battery to work. Alternating current is what comes out of a wall outlet, and it alternates in both directions, with current flowing in and out of the outlet.
A spur outlet is a circuit that does not have a secondary path and is not part of the main ring. Spur sockets can have one cable connected to earth, live, and neutral.
In order to be billed for electricity, you have to have a flow of current. your electric meter is not unlike your water meter in this regard, it measures flow rate through it. An outlet that is not plugged in to anything that is on, or an empty socket that normally holds a bulb will not pass current. That means they are technically off. All a switch does is open an electrical circuit. To close a socket circuit you need a bulb. To close an outlet circuit, you need an appliance that is on (another switch may be involved).
No. Current does not come from a wall outlet unless the wall outlet is part of a complete circuit.
I = E / R = 120 / 14 = 8.571 Amp. (rounded)
They may be connected to the same circuit. Try plugging your treadmill into an outlet that's on a different circuit than the TV.
The "hot" wire and the neutral wire both carry current (the same amount, in fact) when a load is connected to complete the circuit. The ground wire never carries current except when a fault-to-ground situation occurs. Yes, neutral and ground wires should both be at ground potential, but NO they should not be connected at the outlet.