O GoConqr está de visual novo! Conte para nós o que você achou.

Registre-se grátis

Quiz

9702 Current Potential Difference & Power Quiz

Jeffrey Piggott 10 perguntas 1.196 visualizações

Fazer o quiz

Perguntas do quiz (10)

  1. 1The diagram shows the symbol for a wire carrying a current I.

    What does this current represent?    Imagem da pergunta 1
    1. AA the amount of charge flowing past a point in XY per second
    2. BB the number of electrons flowing past a point in XY per second
    3. CC the number of positive ions flowing past a point in XY per second
    4. DD the number of protons flowing past a point in XY per second
  2. 2Which amount of charge, flowing in the given time, will produce the largest current?Imagem da pergunta 2
    1. AA
    2. BB
    3. CC
    4. DD
  3. 3A 12 V battery is charged for 20 minutes by connecting it to a source of electromotive force (e.m.f.).
    The battery is supplied with 7.2 × 104 J of energy in this time.

    How much charge flows into the battery?
    1. AA 5.0 C
    2. BB 60 C
    3. CC 100 C
    4. DD 6000 C
  4. 4A particle has a charge of 4.8 × 10–19 C.
    The particle remains at rest between a pair of horizontal, parallel plates having a separation of 15 mm.
    The potential difference between the plates is 660 V.

    What is the weight of the particle?
    1. AA 2.1 × 10^−14 N
    2. BB 2.1 × 10^−15 N
    3. CC 2.1 × 10^−17 N
    4. DD 1.1 × 10^−23 N
  5. 5Three cells with e.m.f.s V1, V2 and V3, have negligible internal resistance.
    These cells are connected to three resistors with resistances R1, R2 and R3, as shown.
    The current in the circuit is I.

    Which equation is correct?    Imagem da pergunta 5
    1. AAImagem da opção A
    2. BBImagem da opção B
    3. CCImagem da opção C
    4. DDImagem da opção D
  6. 6Three resistors, each of resistance R, are connected in a network, as shown.
    The total resistance between points X and Y is 8.0 Ω.

    What is the value of R ?
    1. AA 2.7 Ω
    2. BB 4.0 Ω
    3. CC 5.3 Ω
    4. DD 12 Ω
  7. 7The battery of a car has an internal resistance of 0.10 Ω and an electromotive
    force of 12 V. When the battery is connected to the starter motor, the potential difference across the battery terminals is 7.0 V.

    What is the current supplied to the starter motor?
    1. AA 50 A
    2. BB 70 A
    3. CC 120 A
    4. DD 190 A
  8. 8A wire RST is connected to another wire XY as shown.
    Each wire is 100 cm long with a resistance per unit length of 10 Ω.m–1.

    What is the total resistance between X and Y?    Imagem da pergunta 8
    1. AA 3.3 Ω
    2. BB 5.0 Ω
    3. CC 8.3 Ω
    4. DD 13.3 Ω
  9. 9A pencil is used to draw a line of length 30 cm and width 1.2 mm. The resistivity of the material in the pencil is 2.0 × 10–5 Ω m and the resistance of the line is 40 kΩ.

    What is the thickness of the line?
    1. AA 1.25 × 10^–10 m
    2. BB 1.25 × 10^–8 m
    3. CC 1.25 × 10^–7 m
    4. DD 1.25 × 10^–5 m
  10. 10The diagram shows a low-voltage circuit for heating the water in a fish tank.
    The heater has a resistance of 3.0 Ω. The voltage source has an e.m.f. of 12 V and an internal resistance of 1.0 Ω.

    At what rate does the voltage source supply energy to the heater?    Imagem da pergunta 10
    1. AA 27 W
    2. BB 36 W
    3. CC 48 W
    4. DD 64 W

Informações

Descrição
Quiz for AS Level Physics Unit 19 Current of Electricity - Electrical Quantities
Idioma
English
Visualizações
1.196
Avaliação
Ainda sem avaliações
Avalie este quiz
Avalie este quiz

Fale Conosco

Sobre o que é sua mensagem?

O que você acha do novo visual?

Você gostou?