Help what? You haven't shown any work, just answers. That's not the way it works here.ooohffff said:
Ammeter reading:phinds said:
The purpose of finding the voltage across the resistor is to determine the potential difference between the two ends of the resistor. This is important in understanding the behavior of the resistor in a circuit and how it affects the flow of current.
The voltage across a resistor can be calculated using Ohm's Law, which states that voltage (V) is equal to the product of current (I) and resistance (R). Therefore, V = IR. This formula can also be rearranged to solve for current or resistance.
The voltage across a resistor is affected by the current flowing through it and the resistance of the resistor itself. The voltage can also be affected by the presence of other components in the circuit, such as a power source or other resistors.
Yes, the voltage across a resistor can change depending on the current and resistance in the circuit. If the current or resistance changes, the voltage across the resistor will also change accordingly.
The voltage across a resistor can be measured using a voltmeter, which is a device that is connected in parallel to the resistor in the circuit. The voltmeter measures the potential difference between the two ends of the resistor and displays it in units of volts (V).