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| What does a fuse or circuit breaker do? |
opens the circuit when the current gets too large |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| Where would you place a switch to protect a circuit element? |
on the same branch as the element |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| Where would you place a switch to control a circuit element? |
on the same branch as the element |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is a short circuit? |
A circuit that has low resistance (no load) and a dangeroulsy large current |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| When calculating the utility bill what units must the energy be in? |
kWh |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| When calculating the utility bill what units must the time be in? |
h(hours) |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| When calculating the utility bill what units must the power be in? |
kW |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is the equation to determine the energy used by a circuit? |
E= P*t |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is the equation to determine the power used by a circuit? |
P=IV=V^2/R |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is the equation for the equivalent resistance of a parallel circuit? |
Rtot = (1/R1+1/R2+...)^-1 |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is the equation for the equivalent resistance of a series circuit? |
Rtot= R1+R2+... |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is needed for a circuit to work? |
a potential difference (a connection to the + and -) and
a closed loop |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens if one load goes out in a parallel circuit? |
the other loads stay on |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens if one load goes out in a series circuit? |
they all go out |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens to the total power of the circuit if you add more loads in a parallel circuit? |
it increases |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens to the total power of the circuit if you add more loads in a series circuit? |
it stays the same |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens to the power for each load as you add more loads in a parallel circuit? |
it stays the same |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What happens to the power for each load as you add more loads in a series circuit? |
it decreases |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is a series circuit? |
A circuit where the elements are on the same branch |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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| What is parallel circuit? |
A circuit where the elements are on multiple branches |
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noblejas Mon, 21 Apr 2008 04:47:49 GMT |
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