Circuits
The equivalent of 1 Joule per second.
What is a Watt?
The SI unit for current.
What is the Ampere/Amp (A)?
The power of a welding machine draws 18 A of current at 240 V.
What is 4.3 x 103 W?
The cause of a gravitational field.
What is mass?
The two causes of a magnetic field.
What is a magnet or an electric current?
These are often used to control the current in an electronic device.
What is resistors?
What is the Ohm (Ω)?
When a 12-volt battery is connected across a resistor of unknown resistance, a current of 2.5 mA results. What is the value of the resistor?
What is 4.8 x 103 Ω?
This hypothetical type of matter, which does not reflect light, makes up 85% of all matter in the universe, according to the most current scientific thought.
What is dark matter?
An iron core wrapped tightly with a coil through which an electric current is run.
What is an electromagnet?
What is Power?
The SI unit of power.
What is the Watt?
There is a current of 0.50 A in a flashlight bulb for 2.0 min. How much charge passes through the bulb during this time?
What is 60 C?
Einstein believed that gravity was due to a curvature in this.
What is spacetime?
This law states that an electric current produces a magnetic field.
What is Ampere's Law.
According to Ampere's Law, the current running through the wire is directly proportional to this.
What is the magnitude of the magnetic field?
The SI unit of charge.
What is the coulomb (C)?
Natural aluminum is found in a mineral ore called bauxite. One process of refining and smelting the ore to get the aluminum out of it uses a DC circuit with a very high current of 235 kA. Assume a voltage of 1,152 V is used to supply the current to the process. Determine the resistance in the DC Circuit.
What is .00490 Ω?
Ampere's Law states that the magnitude of the magnetic field produced by a current is dependent upon these two factors.
What are the current running through the wire and the number of loops or coils of the wire?
A generator which produces electricity by rotating copper wires between a permanent magnet demonstrates this law.
What is Farraday's Law of Induction?
The equation charge, current and time.
What is I = Q/t?
1 Amp is equivalent to this.
What is 1C/s? OR What is 1W/Ω?
The resistance of a 325 W heating element with a current of 6.0 A.
What is 9.0 Ω?
What is the "Right-Hand Rule?"
The shape of the magnetic field of a straight wire with an electric current running through it.
What are concentric circles?