Is there any relationship between the size of the resistance and the size of the resulting voltage?

Is there any relationship between the size of the resistance and the size of the resulting voltage?

There is no relationship between the size of the resistance and the size of the resulting voltagebecause the voltage was constant.

What determines the size of a resistor?

Resistors are rated by the value of their resistance and the electrical power given in watts, (W) that they can safely dissipate based mainly upon their size.

How is the resistor wattage rating related to its size?

The actual size of any resistor depends on its wattage rating. The higher its size, the higher the watts it can handle. Remember that actual size may vary.

Is there a direct correlation between the physical size of a resistor and its resistance value?

Resistors are rated both in terms of their resistance (ohms) and their ability to dissipate heat energy (watts). Resistor resistance ratings cannot be determined from the physical size of the resistor(s) in question, although approximate power ratings can.

Does the size of a resistor matter?

Size is not that important (when the replacement part is bigger) but it’s a 5-band resistor so make sure that you have a resistor of equivalent tolerance (probably +/-1%) or better and temperature coefficient.

How is the voltage drop across a resistor calculated?

According to Ohm’s law, the voltage drop, V, across a resistor when a current flows through it is calculated by using the equation V=IR, where I is current in amps (A) and R is the resistance in ohms (Ω). So the voltage drop across R 1 is V 1 =IR 1, across R 2 is V 2 =IR 2, and across R 3 is V 3 =IR 3.

How is the size of a resistor related to its power?

The power rating of resistor is related to the size of axial resistor. A common half watt resistor measures around 9.2 mm across, while smaller ¼ Watt resistor is about 6.3 mm long.

When is the overall resistance of a circuit equal to?

The overall resistance of the circuit is equal to the sum of individual resistance values. Resistors are said to be in parallel when the terminals of resistors are connected to the same two nodes.

How are resistor values spaced in tolerance band?

The different values are spaced such that the top of the tolerance band of one value and the bottom of the tolerance band of the next one do not overlap. Take as an example a resistor that has a value of 1 ohm and a tolerance of ±20%. The actual resistance at the top of the tolerance band is 1.2 ohms.