Physics- Electrical Charge Flashcards
current x time =
charge
(potential difference- voltage) =
I (current) x R (resistance)
The current in a metallic conductor is ………….. to the potential difference across the ends of the conductor provide its temperature remans constant.
proportional
The higher the voltage, the ……… the current and the brighter the bulb.
higher
The simplest way of measuring resistance is by using an ……
ohmmeter
The unit of resistance is the ….
ohm (omega)
The more resistance there is in a circuit, the smaller the …….. in the circuit.
current
resistance =
voltage/ current
A flowing charge is called a…..
current
The larger the voltage the ……… the current
larger
The voltage across a component is measured with a ……….
voltmeter
The voltage across a component is also called the ……. …….
potential difference
A diode is…..
a device which allows charge to flow in one direction but not in the other
A light dependent resistor has a resistance which changes with …….
the amount of light falling on it
Thermistors detect…..
changes in temperature
