Set the variable resistor to the middle of its range.

A decade box may be used as the variable resistor.

Use a variable resistor to control the current in a circuit.

The amount of light is controlled by a variable resistor which also has an on/off switch.

To find the exact values they are temporarily replaced by variable resistors.

Adjust the variable resistor to set the light level which will trigger the alarm.

Also drill holes for the toggle switch and variable resistor.

Reduces (d) With the aid of a simple diagram explain how a variable resistor works.

The variable resistor is adjusted until the galvanometer reads zero.

Between this block and the circuit board's mains lead connection is a variable resistor.

The depth control limits the amount of application the variable resistor has on the audio signal.

A variable resistor would dissipate power by heat (efficiency as low as 0.5).

In turn, the voltage the joystick puts out depends on the position of the variable resistor.

Modern dimmers are built from semiconductors instead of variable resistors, because they have higher efficiency.

The input was six potentiometers (variable resistors) each having a dial with 26 letters.

A humistor is a type of variable resistor whose resistance varies based on humidity.

The timing period of T1 can be adjusted by the variable resistor VR1.

A variable resistor wired as a potential divider then sets the level into the SB16.

The shape of the response, the Q (quality factor), and the tuned frequency can often be set with inexpensive variable resistors.

About in the middle of the board you will see a large rotary variable resistor which has a slot for adjustment by screwdriver.

After the set up is complete seal the variable resistor adjustments with a small blob of paint or glue.

Reduces (b) The resistance of the variable resistor.

An external, variable resistor controls the motor speed.

Variable resistors, such as the potentiometer and the rheostat, have ohmic characteristics.

But the sensors, flexible strips of carbon-coated plastic that act as variable resistors, needed to be attached to something.