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What else can I help you with?
Why should current be reversed in an AC circuit?
The current in any AC circuit reverses every cycle.
Should current be measured with the power off the circuit?
It will not be possible to measure current unless the circuit is powered and operating.
What information should be included on circuit breaker labels?
Circuit breaker labels should include the voltage rating, current rating, type of circuit, and the location of the circuit breaker.
Why rated current should flow in the secondary for short circuit test in transformer?
Open Circuit test is done to find out core losses of the transformers.which include Eddy Current Losses and Hysteresis Losses only, if during open circuit test secondary will have some load then I2R losses due to load current in secondary as well primary will be included in test results which is not desired while performing Open circuit test.
What is the maximum current rating for the circuit breaker if the load requires a continuous current of 25 amps?
The maximum current rating for the circuit breaker should be at least 30 amps to accommodate the continuous current of 25 amps required by the load.
Should you increase voltage or resistance to increase flow in a circuit?
To increase (current) flow in a circuit you increase voltage (or decrease resistance). Ohm's Law: Current = Voltage divided by resistance
Why should you put the meter on the negative side when measuring current?
A meter can be used both on the positive or negative side of a circuit when measuring current. The current going to a load should be equal to the current coming back from the load. When measuring DC current, make sure the meter should be more than adequete to be placed in series with the circuit. Otherwise, use a clamp-on meter.
Why a bjt is called a current control device?
The collector current is a multiple of the base current due to the inherent design of the BJT. In circuit analysis, barring knowing the exact amplification, I've used 50 many times - so if you have 20 uA flowing in the base, the collector current should be ~ 1mA, and the emmiter will be ~1.02mA.
Is the current in the circuit 80 percent of the fuse rating?
It should be, yes. Never higher.
How is fuse use?
The fuse is the weak link in the chain. It has a lower current limit than the rest of the circuit. Should a dangerous over current occur the fuse will 'blow' or burn out, thus protecting the circuit from the over current fault.
In a series RLC circuit at frequencies above resonance is the circuit capacitive or inductive?
in series you XL, voltage leads the current, and in Parallel current leads the voltage. so your answer should reflect on this theory.
Why do you mean by short circuit?
A short circuit is a low resistance connection established by an accidental touching between a line supply and a grounded object in an electric circuit. The current will flow through the low resistance point, bypassing the rest of the circuit. When this happens the circuits over current device should open the circuit.
