Potential dividers

• 0 and 5 V

• 0 and 20 V

• 0 and 25 V

• 5 and 25 V

• a LDR

• a potentiometer

• a galvanometer

• a thermistor

• 4.8 V

• 7.2 V

• 9.6 V

• 12 V

• 41 W

• 50 W

• 53 W

• 62 W

• The voltmeter reading decreases because the LDR resistance decreases

• The voltmeter reading decreases because the LDR resistance increases

• The voltmeter reading increases because the LDR resistance decreases

• The voltmeter reading increases because the LDR resistance increases

• 0 - 3.0 V

• 0 - 4.5 V

• 0 - 9.0 V

• 4.5 - 9.0 V

• A

• B

• C

• D

• R1: doubled

  R2: doubled

• R1: doubled

  R2: halved

• R1: halved

  R2: doubled

• R1: halved

  R2: halved

• A

• B

• C

• D