p4

• what is current?


  Flow of electric charge.
• what is current measured in?

  amps, A
• what is charge measured in?

  Coulombs, C
• what is the equation for charge flow?

  The equation for charge flow is Q = I * t, where Q is the charge flow, I is the current, and t is the time.
• what is a LDR and its function?

  it is a light dependent resistor, and its function is that it changes resistance depending on light intensity, and lets charge flow in one direction.
• what does the cell do in a circuit?

  its a push for electrons to move and provides potential difference.
• what is the function of the thermistor?

  changes resistance depending on temperature
• variable resistor can...?


  can change the resistance
• a battery is..(similar to cell)?


  a push for electrons to move and provides potential difference
• a LED...?


  gives out light when current flows and only allows current to flow in 1 direction.
• ohms law equation?


  v=I*R
• ammeter is connected in..?

  series
• voltmeter is connected..?


  parallel to the circuit
• in series circuit the current is?

  the same/constant
• what is a series circuit?

  A circuit where the components are connected in a single path, so the current flows through each component in sequence.
• in a series circuit the potential difference...?

  ...is the same across all components.
• in a series circuit the resistance..?

  Adds up
• in a parallel circuit the current is..?

  shared
• in a parallel circuit the potential difference is..?

  the same
• in a parallel circuit the resistance is..?

  Decreased
• ohmic conductor is..?


  A material that obeys Ohm's Law.
• 1. what is this?

  iv graph of a diode

  
• what is this?


  a iv graph of a filament lamp

  
• what is this?


  iv graph of a thermistor