Ch16 Wed Lightbulb Computer Washing machine During a snowstorm, the power to you

Question

Ch16 Wed Lightbulb Computer Washing machine During a snowstorm, the power to your house goes out, so you use a huge battery to power your household devices. You connect all three in parallel to the battery, as shown. If you add a fourth device in parallel to the battery, what would you expect to be true about the CURRENT in the new circuit? Assume that the internal resistance of the battery is small in comparison to the resistance of each device, and that the devices have resistances that are of the same order of magnitude. ] The current through the battery should stay the same. 0 The current through the battery should increase. The current through the battery should decrease.

Explanation / Answer

The current through the battery should decrease

because all devices (loads) are connected in parallel. so voltage across them is same but currents are not

Let i be the current flows through battery

and i1 , i2 , i3 be the currents flows through washing machine, computer, light bulb

then i = i1 + i2 + i3

if we add another device then current flow through that device is i-(i1 + i2 + i3 ) so current through battery decreases

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---