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- 1. Multiple Choice
How many billions of electrons are there in a 3 A current?
6.250
12.50
18.75
25.00
- 2. Multiple Choice
What is the amount of current when 60 coulombs of charges pass through a circuit in 10 seconds?
3 A
4 A
5 A
6 A
- 3. Multiple Choice
What will happen if one light bulb is removed from a series circuit?
A. The other bulbs will not work.
B. The other bulbs will get dimmer.
C. The other bulbs will get brighter.
D. The battery will become stronger.
- 4. Multiple Choice
What will happen if one light bulb is removed from a parallel circuit?
A.The other bulbs will not work.
B. The other bulbs will get dimmer.
C. The other bulbs will continue to light.
D. Some bulbs will get dimmer and some will get brighter.
- 5. Multiple Choice
The following are advantages of bulbs connected in series EXCEPT:
A. It does not overheat.
.
B. It is easy to install and maintain.
C. Low current is needed to light all the bulbs.
D. Large amount of current is needed to light all the bulbs
- 6. Multiple Choice
The following are disadvantages of connecting too many bulbs in parallel
EXCEPT:
A. Bulb will easily overheat.
B. It is difficult to maintain and install.
C. There will be current overloading in the conducting wire.
D. There will be an equal amount of voltage for every load in a circuit.
- 7. Multiple Choice
Which of the following statements is NOT true about safety devices used at home?
A.Safety devices are used to prevent electric shock.
B. Safety devices cut the flow of current in case of overloading.
C. Safety devices are used to provide an alternative routes for current in the case of a grounded circuit.
D. Safety devices supply an unsteady amount of voltage to protect appliances against overloading.
- 8. Multiple Choice
It is a device that maintains a steady supply of voltage to your appliances at
home.
A. fuse
B. resistor
C. circuit breaker
D. voltage regulator
- 9. Multiple Choice
The fuse at home has “blown” up many times. Which of the following must NOT be done to solve the problem and prevent it from happening again?
A. Buy fuse with standard amperage rating.
B. Do not use all appliances simultaneously.
C. Call your barangay electrician to fix your electrical problem.
D. Use jumper wire or cover the blown fuse with available silver paper.
- 10. Multiple Choice
The following are effects of alternating current in the body EXCEPT:
A. It can lead to stronger muscles in the body.
B. It can cause improper function of the brain and heart.
C. Muscles will involuntarily contract which will be hard to control.
D. The body will experience intense heat that can cause skin burning.
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