Physics Electricity

Two conductors transfer the same amount of charge. One conductor is cooled to near freezing while the other conductor remains at room temperature. The charge going through the conductor near freezing will experience ___________ resistance than the shorter conductor

In direct current____________

you bring a charged object near an uncharged object that is not connected to a ground. The positive and negative charges move to opposite sides of the uncharged object. This is an example of

The measure of the difference in electrical potential energy between two positions in the space divided by charge is called

A 1050 Watt electric toaster operates on a household circuit of 120 volts. What is the resistance of the wire that makes up the heating element of the toaster? (Use the electrical power equation and Ohm's law)

An electric heater is operated by applying a potential difference of 50.0 volts across a wire of total resistance 8.00 Ohms. The Power rating of the heater (you must use both the Ohm's Law and Electrical Power equations)

(refer to diagram #2 on the separate diagram sheet) A positive test charge at point C will

(refer to diagram #1 on the separate diagram sheet) In the diagram the two charges are

A device used in circuits to control the direction of current is called a

If a test charge is repelled by a negatively charged electric field, the test charge must be

A device which converts chemical energy into electrical energy is called a

(refer to diagram #1 on the separate diagram sheet) Charge q1 has _______ charge of q2.

If electricity were compared to a water system where a pump was pushing water through a hose, the pump would be the

Which of the following is not an insulator?

The rate at which charge carriers do work is called

When charging by induction

A typical color television draws 2.50 amperes of current when connected across a potential difference of 115.00 volts. What is the effective resistance of the television set? (use Ohm's Law)

If electricity were compared to a water system where a pump was pushing water through a hose, a longer or a narrower hose would act as

Use Coulomb's law to find the distance between two charges that exert a repulsive force of 175 N on each other. The charges are +2.4 x 10-6 C and +4.3 x 10-6 C

According to Coulomb's law if the distance between two positive charges is doubled the ________________ force between the charges will be _______

(refer to diagram #2 on the separate diagram sheet) A negative test charge placed at point B will have ___________ potential energy than if it were placed at point A.

A small electronic device is rated at 0.25 watts when connected to 120 volts. What is the resistance of this device? (use both Ohm's Law and electrical power equations.

Two conductors transfer the same amount of charge. One conductor is twice as long as the other conductor. The charge going through the long conductor will experience ___________ resistance than the shorter conductor

____________ charge carriers will always flow in the opposite direction of current

A 1.5 volt battery is connected to a small light bulb with a resistance of 3.5 Ohms. What is the current in the bulb? (Use Ohm's Law)

The ampere (A) is the unit of

Metal is an example of a

(refer to diagram #2 on the separate diagram sheet) A positive test charge placed at point B will have ___________ electrical potential energy than a charge placed at point A.

Conventional current is defined in terms of the flow of

you rub a blue balloon on your head transferring electrons to the balloon. Suppose the blue balloon, which has a net negative charge, is brought near another red balloon hanging from a string. The red balloon moves away from the blue balloon. The red balloon must have a

(refer to diagram #1 on the separate diagram sheet) In the diagram, q1 is a _______________ charge and q2 is a ______________ charge

The rate at which electric charge pass through a cross sectional area of a conductor is called.

A device which converts mechanical energy into electrical energy is called a

Any object in which electric charge does not move freely is called a(n)

Use Coulomb's law to calculate the value and sign of an unknown charge (q2) if the first charge (q1) is +5.7 x 10-8 C and exerts a force of 12 N causing q2 to move 5.0 x 10-4 m towards it.