QUIZ 2_GENERAL PHYSICS QUARTER 4

What is electromagnetism primarily a result of?

• Moving mechanical objects

• Moving electrical charge or current

• Stationary electrical charge

• Static magnetic fields

Which of the following is a common variable associated with electromagnetism?

• Voltage (V)

• Resistance (R)

• Capacitance (C)

• Inductance (L)

What is the purpose of the Right Hand Rule in electromagnetism?

• To determine the direction of magnetic field

• To calculate the resistance of a wire

• To find the voltage drop across a circuit

• To measure the capacitance of a capacitor

When using the Right Hand Rule for current through a straight wire, what does the thumb represent?

• Direction of current

• Direction of magnetic field

• Direction of voltage

• Direction of resistance

When current flows towards you in a straight wire, what is the direction of the resulting magnetic field?

• Clockwise

• Counterclockwise

• Upwards

• Downwards

How is the direction of the magnetic field determined when current flows away from you in a straight wire?

• Clockwise

• Counterclockwise

• Upwards

• Downwards

When current flows up in a straight wire, what is the direction of the magnetic field in front of the wire?

• To the left

• To the right

• Upwards

• Downwards

What is a solenoid primarily composed of?

• Insulating material

• Magnetic material

• Conductive wire

• Dielectric material

How is an electromagnet strengthened?

• By reducing the number of coils

• By using a non-conductive wire

• By increasing the number of coils and current

• By decreasing the current

What is the purpose of the soft iron core in a solenoid?

• To increase resistance

• To decrease magnetic field strength

• To align magnetic domains

• To reduce current flow