In a capacitive circuit, you must first calculate the capacitive reactance (Xc) This is done by 2 x Pi x frequency x the value of capacitor. Then divide one by the answer. This will give you the capacitive reactance in ohms. You can then apply ohms law to find the current. So eg: A 10 ohm resistor is in series with a 150micro farad capacitor across a 230v 50Hz supply. find circuit current. So 2 x pi x 50 x 150E-6(means x10-6 on calc) 2 x 3.14159... x 50 150e-6 = 0.047123889(ans) Now 1/Ans = 21.22 ohms. So you can now add the 21.22 ohms and the 10 ohms together giving 31.22 ohms. This is the total circuit resistance. Now apply ohms law I = V/R So I = 230/31.22 = 10.83 Amps!
You know if current is flowing in a bulb circuit because, if there is enough power (voltage times current), the bulb will illuminate. If there is current, but not enough power to illuminate the bulb, you will need to measure the current with an ammeter to see if there is any current.
To determine the current in a complex circuit, you must know the total voltage supplied by the power source and the total resistance of the circuit. Using Ohm's Law (I = V/R), where I is the current, V is the voltage, and R is the resistance, you can calculate the current flowing through the circuit. Additionally, if the circuit is alternating current (AC), knowing the impedance is also essential.
The AC current grows gradually when an inductive circuit is switched on. This specific current, also know as a electromagnetic field, is slowly growing, then shrinking, and changing, because of the wire current.
To calculate the total current in a circuit with resistances measured in ohms, you would need to know the voltage applied across the circuit. Using Ohm's Law (I = V/R), where I is current, V is voltage, and R is resistance, you can determine the total current. If you provide the voltage and the configuration of the resistors (series or parallel), I can help you find the total current.
The first thing you need to know is the internal resistance of the current source, the voltage source will have the same internal resistance. Then compute the open circuit voltage of the current source, this will be the voltage of the voltage source. You are now done.
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A Galvanometer can be used to detect the presence of current in a circuit. An ammeter can be used to know the magnitude of the current flowing through the circuit.
You know if current is flowing in a bulb circuit because, if there is enough power (voltage times current), the bulb will illuminate. If there is current, but not enough power to illuminate the bulb, you will need to measure the current with an ammeter to see if there is any current.
Yes, a current requires a closed circuit to flow. Without a closed path for the electrons to travel through, the current cannot be established. The circuit provides the complete loop necessary for the flow of electrons.
It is certainly an option, if you know the topic well - or if you like it and would like to explore it.
Series circuit: The total voltage is the sum of the voltage on each component. The total resistance is equal to the sum of the resistance on each component. The total current is equal in every component.
V=IR where V is voltage, I is current and R is resistance. You want to know what the current will be in a series circuit based on the resistance. You need to know the voltage as well as the resistance, gives you the equation as follows I=V/R So if you have 10 volts and a 1 ohm resistor, the current will be 10 amps. If you increase the resistor to 10 ohms, your current will then be 1 amp. In a parallel circuit, the resistance is equal to the sum of the inverse. For example. If I have two resistors of 2 ohms each in parallel, the equation would be 1/2 + 1/2 = 0.5 + 0.5 = 1 In that particular instance, your current would increase.
I don't know what the parallel circuit has to do with it. You've onlygiven me a resistor and the current through it.When 0.03A of current passes through a 1,000Ω resistor, the resistordissipates energy at the rate of 0.9 watt.
You'd need to know either the resistance or the wattage of the circuit. Ohm's Law: Current = Voltage divided by resistance or Current = Power divided by Voltage
The AC current grows gradually when an inductive circuit is switched on. This specific current, also know as a electromagnetic field, is slowly growing, then shrinking, and changing, because of the wire current.
To calculate the total current in a circuit with resistances measured in ohms, you would need to know the voltage applied across the circuit. Using Ohm's Law (I = V/R), where I is current, V is voltage, and R is resistance, you can determine the total current. If you provide the voltage and the configuration of the resistors (series or parallel), I can help you find the total current.
The first thing you need to know is the internal resistance of the current source, the voltage source will have the same internal resistance. Then compute the open circuit voltage of the current source, this will be the voltage of the voltage source. You are now done.