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What is the difference between external data bus and internal data bus?
A data bus connects different parts of a circuit and comprises a group of parallel wires, each one carrying a different logic signal.
What is the unit of measurement of internal resistance?
unit of internal resistasnce is ohms too. V = I(R+r) V voltage across the circuit I current in the circuit R external resistance r internal resistance unit of internal resistasnce is ohms too. V = I(R+r) V voltage across the circuit I current in the circuit R external resistance r internal resistance
What is the difference between series and parralal circuit?
difference between series is one pathway through circuit,difference between parralal is more then one pathway through circuit.
Why potential difference across open circuit is more than in closed circuit?
In a closed circuit there is a potential drop due to resistance of wires and battery (internal).AnswerWhen the circuit is closed, the resulting current not only flows through the external circuit, but through the source (battery, generator, transformer, etc.) itself. All sources have an internal resistance, which causes an internal voltage drop, slightly reducing the voltage across the terminals. The larger the current, the larger the internal voltage drop, and the lower the terminal voltage.When the circuit is open, no current flows. So there is no internal voltage drop, and the full voltage appears across the source's terminals.The 'open-circuit voltage' is actually the electromotive force provided by the source.
What is the difference between mlln and data circuit?
a mlln circuit is a data circuit
When does Internal resistance equals external resistance?
Internal resistance equals external resistance when the load connected to a battery consumes power equal to that dissipated in the battery's internal resistance. This occurs when the open circuit voltage of the battery drops to zero.
What is the difference between fuse and MCB?
what is the difference between miniature circuit breaker and fuse
What is the difference between ac and dc generators?
AC generator, the brushes run on slip rings which maintain a constant connection between the rotating coil and the external circuit. This means that as the induced emf changes polarity with every half-turn of the coil, the voltage in the external circuit varies like a sine wave and the current alternates direction. DC generator, the brushes run on a split-ring commutator which reverses the connection between the coil and the external circuit for every half-turn of the coil. This means that as the induced emf changes polarity with every half-turn of the coil, the voltage in the external circuit fluctuates between zero and a maximum while the current flows in one constant direction
What is difference between magnetic circuit and electric circuit?
magnetic circit has a magnet and electri circuit has electricity
Can there be a potential difference between two conductors that carry like charges of the same magnitude?
Yes, there can be a potential difference between two conductors that carry like charges of the same magnitude. This can occur if the conductors are at different potentials due to external influences or if the conductors are part of a circuit where there is a potential difference applied.
What are two of the main requirements that allow electric charge to flow in an electric circuit?
In order to have a valid electric circuit, two requirements must be met: there must be a potential difference within it (measured in Volts), and current must be flowing through it (measured in Amperes). That implies that the three basic blocks of a circuit are present - a power source (that defines the potential and supplies the current), conductors (which connect the power source to the load), and the load, which consumes current to do some work. Coincidentally, lack of a potential difference means that there are no charges "willing" to travel between point A and point B, which means that there is no current flowing from A to B (or otherwise), in regard to just these two measurement points. Of course, if you connect just your voltmeter to a battery, you will see a readout - that is because the voltmeter completes the circuit (and is doing some work for you), and since the circuit is complete, the current is flowing, and that implies a difference of potential.
Why phase difference exists between voltage and current in ac circuit?
because of the reactances in the circuit
