What is the resistance of the device? When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3 A. The resistance of the device is
27 ohm ; V = IR ; 81 = 3R
; R = 81 / 3 = 27 ohm. This answer has been confirmed as correct and helpful.
When a device is used in a circuit in which the voltage is 81 v the current flowing through the device38 what is the resistance of the device?
What is the resistance of the device? When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3 A. The resistance of the device is
27 ohm ; V = IR ; 81 = 3R
; R = 81 / 3 = 27 ohm. This answer has been confirmed as correct and helpful.
What usually occurs with a short circuit?
A short circuit is an
abnormal connection between two nodes of an electric circuit intended to be at different voltages
. This results in an electric current limited only by the Thévenin equivalent resistance of the rest of the network which can cause circuit damage, overheating, fire or explosion.
Which of the following is an example of electrical energy?
A storage battery is charged using an electric current
is an example of electrical energy being converted to chemical energy.
Which of the following does not affect electrical resistance of a body?
Answer Expert Verified Material composing the body, temperature of the body and the length of the body affects the electrical resistance of a body.
Bodies directly surrounding the body
will not affect the electrical resistance of the body.
How do you fix a short circuit?
- Determine which appliance has a short in it. …
- Locate the wires in your device that are causing the short. …
- Make a new wire to replace the damaged one. …
- Unwind a length of insulated copper wire from a spool and cut the wire so its the length you need.
How can you prevent a short circuit?
- Unplug Electronics When Not in Use: This is one of the easiest methods to prevent short circuits in your home. …
- Install Fuses: …
- Install Magneto-Thermal Switches: …
- Have Grounded Outlets:
What are the 3 examples of electrical energy?
- Alternating current (AC)
- Direct current (DC)
- Lightning.
- Batteries.
- Capacitors.
- Energy generated by electric eels.
What are the two types of electrical energy?
There are two main types of electricity,
Static Electricity
, generated by rubbing two or more objects causing to build up friction, Current Electricity, generated by the flow of electrical charge through a conductor across an electrical field.
What are the five sources of electrical energy?
Most electricity is generated with steam turbines using
fossil fuels, nuclear, biomass, geothermal, and solar thermal energy
. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.
Which of the following affects the resistance of objects?
How much resistance a material has depends on several factors:
the type of material, its width, its length, and its temperature
. All materials have some resistance, but certain materials resist the flow of electric current more or less than other materials do.
How do I find a short in my house wiring?
Check the wires for a short by
placing one lead of the meter to the black wire and the other to the white wire
. If the meter shows infinite ohms or O.L., then the receptacle and its circuit right up to the breaker is good.
Which test would identify a short circuit?
The first thing you’ll need to do to find a short circuit is to look for physical signs. This may include visible burns or metal on wires, burning smells, or flickering lights. Once you’ve identified a potential short, use your
multimeter
to confirm the voltage by setting it to resistance or continuity setting.
How do you fix a short circuit in your home?
- Shorts Occur in a Circuit. Electricity flows in a circuit. …
- Isolate the Circuit. …
- Check the Appliances on the Affected Circuit. …
- You Need the Proper Tools. …
- Remove the Wires. …
- Check the Wires. …
- Remove the Breaker Wires. …
- Check the Breaker.
How do you fix a short circuit on a phone?
Typically, the only way to repair a short circuit will be
to completely remove and replace the logic or motherboard
. If you catch it early enough, water damage can be reversed be a water damage cleaning service so that it will not lead to corrosion or a short circuit.
