Can a 10A Fuse Handle a 150W Radio and 240V Water Heater in Parallel?

In summary, having a radio and heater in parallel allows for simultaneous operation and separate control of each device without affecting overall power consumption. Other devices can also be connected in parallel as long as the circuit's capacity is not exceeded, but interference should be considered. If one device stops working, the other will continue to operate without issues. As long as safety guidelines are followed and the circuit is not overloaded, it is safe to have a radio and heater in parallel.
  • #1
chawki
506
0

Homework Statement


A radio (power = 150 W) and a water heater (resistance = 40 Q) are connected in
parallel. The current, needed for them is fused at 10 A maximum.

Homework Equations


Does the fuse stand the simultaneous use of the radio and the heater? The voItage is 240 V.

The Attempt at a Solution


r: radio
h: heater

V=Vr=Vh
Itotal=Ir+Ih

Pr=V*Ir
Ir=150/240=0.625 ampere

Vh=R*Ih
Ih = Vh/R = 240/40 = 6 amperes

Itotal = 0.625+6 = 6.625
6.625<10 so the fuse will stand
 
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  • #2
That looks good.
I guess the "40Q" meant "40Ω".
 
  • #3
Delphi51 said:
That looks good.
I guess the "40Q" meant "40Ω".
yesyes 40Ω , and thank you o:)
 

Related to Can a 10A Fuse Handle a 150W Radio and 240V Water Heater in Parallel?

1. What is the purpose of having a radio and heater in parallel?

Having a radio and heater in parallel allows them to both operate simultaneously without interfering with each other. It also allows for separate control of each device.

2. How does having a radio and heater in parallel affect the overall power consumption?

Having a radio and heater in parallel does not affect the overall power consumption. Each device draws its own amount of power, so the total power consumed will be the sum of both devices' power consumption.

3. Can I connect any other devices in parallel with the radio and heater?

Yes, as long as the total power consumption of all devices does not exceed the circuit's maximum capacity. However, it is important to consider the potential for interference between devices.

4. What happens if one of the devices in parallel stops working?

If one of the devices in parallel stops working, the other device will continue to operate without any issues. The malfunctioning device can be safely removed without affecting the other device.

5. Is it safe to have a radio and heater in parallel?

As long as the devices are connected properly and the circuit's maximum capacity is not exceeded, it is safe to have a radio and heater in parallel. It is important to follow safety guidelines and consult with a professional if unsure.

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