Exploring Electricity and Magnetism

What is static electricity?

• Static electricity is the buildup of electric charge on the surface of objects.

• Static electricity is the heat generated by friction between two surfaces.

• Static electricity is the flow of electric current through a conductor.

• Static electricity is the energy produced by moving water.

How do you create static electricity?

• Static electricity is generated by mixing liquids together.

• Static electricity is created by heating metals until they glow.

• Static electricity occurs when two objects are placed in a vacuum.

• Static electricity is created by rubbing two different materials together, causing a transfer of electrons.

What is the unit of electric charge?

• Volt

• Watt

• Coulomb

• Ohm

What happens when two objects with the same charge are brought close together?

• The objects attract each other.

• The objects repel each other.

• The objects remain stationary.

• The objects merge into one.

What is the difference between a series circuit and a parallel circuit?

• A series circuit can operate without a power source, while a parallel circuit requires one.

• A series circuit has multiple paths for current, while a parallel circuit has a single path.

• A series circuit has a single path for current, while a parallel circuit has multiple paths.

• A series circuit is used in household wiring, while a parallel circuit is used in batteries.

In a series circuit, what happens to the total resistance when more resistors are added?

• The total resistance increases.

• The total resistance decreases.

• The total resistance fluctuates randomly.

• The total resistance remains the same.

What is the formula for calculating total resistance in a series circuit?

• R_total = R1 * R2 * R3 * ... * Rn

• R_total = R1 - R2 - R3 - ... - Rn

• R_total = 1/(1/R1 + 1/R2 + 1/R3 + ... + 1/Rn)

• R_total = R1 + R2 + R3 + ... + Rn

In a parallel circuit, how does adding more branches affect the total current?

• Adding more branches decreases the total current in a parallel circuit.

• Adding more branches has no effect on the total current in a parallel circuit.

• The total current remains constant regardless of the number of branches in a parallel circuit.

• Adding more branches increases the total current in a parallel circuit.

What is the role of a resistor in a circuit?

• A resistor increases current flow in a circuit.

• A resistor limits current and controls voltage in a circuit.

• A resistor stores electrical energy for later use.

• A resistor acts as a power source in a circuit.

What is Ohm's Law?

• Ohm's Law is V = I * R.

• Ohm's Law states that R = V / I.

• Ohm's Law is I = V + R.

• Ohm's Law defines power as P = I / R.