A: practically any series resistance will do that
In what sense.
resistance to the flow of electrical current in the circuit. It is a measure of how much opposition the circuit presents to the flow of electricity. The higher the number of ohms, the greater the resistance in the circuit.
When you increase the resistance in a circuit, the current (amps) in the circuit will decrease. This is because Ohm's Law states that current is inversely proportional to resistance, so as resistance increases, current decreases.
The current in a short circuit may be very high because the resistance in the short circuit is probably less than the resistance in the original circuit.
The resistance of the component on that branch of the circuit, if the resistance is higher less of a proportion of the total current of the circuit will travel through that branch, however, if the resistance is low a higher proportion of the current will travel through that branch of the circuit. The voltage through each branch stays the same.
The value of resistance when there is a short circuit varies depending on the nature of the fault, but it could be fractionally above zero or higher.
An increase in resistance in a series circuit can be caused by adding resistors in series, increasing the length or cross-sectional area of the wire, or using a material with higher resistivity. This leads to a higher total resistance in the circuit, which can reduce the current flowing through it.
The resistance of the component on that branch of the circuit, if the resistance is higher less of a proportion of the total current of the circuit will travel through that branch, however, if the resistance is low a higher proportion of the current will travel through that branch of the circuit. The voltage through each branch stays the same.
A rheostat is a variable resistor that can increase or decrease the resistance in a circuit. By increasing the resistance in the circuit, the rheostat limits the flow of current, causing it to become higher in the parts of the circuit where the resistance is lower.
In a d.c. circuit, voltage drop is the product of resistance and current through that resistance.
If a bulb with higher resistance is used in a simple circuit, the total resistance in the circuit would increase. According to Ohm's Law (V=IR), with an increase in resistance, the current in the circuit would decrease since the voltage supplied remains constant.
Resistance in a circuit is its ohmic value of the circuit. It is comprised of all of the devices and components that make up the circuit. This also includes the wire that carries the voltage to the load of the circuit.