test Electricity

In a circuit with 2 batteries in parallel we get:

• Increase the duration.
• Increase the strength.
• Both are correct.
• Both are false.

What magnitude is measured directly connected to the device?

• Voltage. 
• Resistance. 
• Current. 
• None.

 What measurement device has more connection points?

• Voltmeter. 
• Ohmmeter. 
• Wattmeter. 
• All have 3.

In a circuit with a battery if we increase the resistance of the circuit ...

• Decrease the voltage.
• Decrease the current.
• Both are correct.
• Both are false.

In a circuit with 3 bulbs connected in series. If a bulb is melted...

• The other 2 are still shining.
• Melt also the other 2.
• Depends on the type of the current.
• The other bulbs do not shine.

In a circuit with 3 bulbs connected in parallel. If a bulb is melted...

• The other 2 are still shining.
• Melt also the other 2.
• Depends on the type of the current.
• The other bulbs do not shine.

What two elements are in the control group?

• Speaker and motor.
• AC power supply and bulb.
• Push button and bell.
• 3-way Switch and push button.

Among the elements: safety switch; switch; plate; battery; RCD; cable; bell; AC power supply; motor; 3-way switch; fuse; There are...

• 3 of safety.
• 3 generators.
• 3 of control.
• 3 of each one.

How many of the following materials are insulators: platinum; plastic; germanium; wood; rubber; silicon; copper; ceramics and aluminium?

• 2
• 3
• 4
• More than 4.

What have in common the bell, bulb and motor?

• All are loads.
• Have 2 points of connection.
• Both are correct.
• Both are false.