Science Form 2 Chapter 7

A bulb with  $5\Omega$  resistance receives a voltage of 1.5 V. Calculate the value of current that flows through the bulb.

• 7.5 A

• 0.3 A

• 6.5 A

• 2.0 A

Name the circuit.

• Parallel circuit

• Series circuit

What is this?

• Parallel circuit

• Series circuit

- When a bulb spoils, the rest of the bulb will not light up.

- The brightness of the bulb decreases as the number of the bulbs connected increases.

- Each electrical appliance cannot be switched off

individually.

Which circuit is match with the characteristics above?

• 
• 
• 
• 
• 

If an object is attracted to magnet, the object is a magnetic material.

• True

• False

The current that flows through a bulb in a chicken coop is 0.3 A. Calculate the voltage that crosses the bulb if the bulb has a resistance of $6\Omega$ . 

• 0.9 V

• 1.8 V

• 0.05 V

An ________________ is a type of magnet that has temporary magnetic effect when electric current flows through it.

• electromagnet

• electrostatic

• electric current

_________________ states that the electric current that flows

through a conductor is directly proportional to the voltage across two ends of the conductor, provided the temperature and other physical situations remain unchanged.

• Right-hand grip rule

• Fleming left hand rule

• Ohm's Law

Solenoid polarity can be determined by observing the direction of the current flow.

The current that flows in the anti-clockwise direction is the ___________ pole, whereas the current that flows clockwise is the __________ pole.

• north, south

• south, north

• east, west

• west, east

__________________ can be used to measure current and voltage.

• Thermometer

• Oximeter

• Multimeter

• Perimeter