40. Which of the following will cause the current through an electrical circuit to decrease? *
1 point
A. increase the voltage
B. decrease the resistance
C. decrease the voltage
D. lower the resistance
41. In the circuit below, which two elements are connected parallel to each other? *
1 point
Captionless Image
A. A and B
B. B and C
C. C and D
D. D and E
42. When you are at home, turning off a light usually does not turn off your T.V. This is because __________. *
1 point
A. a T.V. does not require electricity
B. they have different sources of voltage
C. most electrical devices in a house are on series circuits
D. most electrical devices in a house are on parallel circuits
43. What happens to the intensity or the brightness of the lamps that are connected in series, as more and more lamps are added? *
1 point
A. increases
B. decreases
C. remains the same
D. cannot be predicted
44. What increases in a parallel circuit if more loads are added to it? *
1 point
A. current
B. voltage
C. resistance
D. power
45. What happens to Lamps A and B if Lamp C as shown in the series circuit below, burns out? *
1 point
Captionless Image
A. Bulb B burns out, but Bulb A does not
B. Bulbs A and B also burn out, so they do not light up.
C. Bulbs A and B do not burn out, but they do not light up
D. Bulbs A and B are not affected and still light up.
46. Why must you use safety electrical devices at home? *
1 point
A. Electrical safety devices provides path for electron to flow.
B. Electrical safety devices provide electrical resistance in the circuit.
C. Electrical safety devices protect our home from fire or burning caused by short circuit/overloading.
D. Electrical safety devices allow a little amount of voltage to flow in the circuit caused by short circuit/overloading.
47. Why are fuses and circuit breakers used in circuits? *
1 point
A. Fuses and circuit breakers insulate the connection in the circuit.
B. Fuses and circuit breakers can help out in the electrical consumption.
C. Fuses and circuit breakers increase the efficiency of the appliances within the circuit.
D. Fuses and circuit breakers open the circuit when a large amount of current flows through it.
48. Your fuse at home has “blown” up many times. Which of the following will you do to solve this problem and prevent it from happening again? *
1 point
A. Connect an additional fuse to your circuit.
B. Plug two or three appliances in one outlet.
C. Connect appliances in series instead of parallel.
D. Do not use too many appliances at the same time.
49. Which of the following is one of the purposes of a fuse or circuit breaker? *
1 point
A. to prevent electrocution
B. to protect appliances against power surges
C. to prevent metal cases from becoming electrified
D. to allow you to reduce the power going to an appliance
50. When a fault occurs in a power system, the circuit breaker __________. *
1 point
A. is opened manually
B. opens automatically
C. is opened by a remote control
D. none of the given
Please brainliest you