P2 Electricity

Posljednje ažuriranje 3 days ago

Untitled Section 1

4.2.1.1 Standard Circuit Diagram Symbols

4.2.1.1

4.2.1.2 Electrical charge and current

4.2.1.3 Current, resistance, and potential difference

4.2.1.3 Resistors

4.2.2 Series and parallel circuits

4.2.3.1 Direct and Alternating potential difference

4.2.3.2 Mains electricity

4.2.3.2

4.2.4.1 Power

4.2.4.2 Energy transfers in everyday appliances

4.2.4.3 The National Grid

4.2.4.3

4.2.5.1 Static charge

4.2.5.2 Electric fields

Stavka koja se može prevući		Odgovarajuća stavka
Resistor
Closed switch
Cell
Lamp / Bulb
Fuse
Variable Resistor
Open Switch
Battery
Voltmeter
Light Emitting Diode (LED)
Thermistor
Diode
Ammeter
Light Dependent Resistor (LDR)

Stavka koja se može prevući		Odgovarajuća stavka
Resistor
Closed switch
Cell
Lamp / Bulb
Fuse
Variable Resistor
Open Switch
Battery
Voltmeter
Light Emitting Diode (LED)
Thermistor
Diode
Ammeter
Light Dependent Resistor (LDR)

P2 Electricity

P2 Electricity

Match the item to the picture

Draw a circuit diagram from the image

The toaster is plugged in to the mains electricity supply.
What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.
What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.
Figure 2

The power station generates electricity at a voltage of 25 kV.
Transformer A increases the voltage by a factor of 16.
What is the voltage output of transformer A?

Why is the voltage increased by transformer A?
Tick one box.

Why is it important that the voltage is decreased by transformer B?

Match the item to the picture

Draw a circuit diagram from the image

The toaster is plugged in to the mains electricity supply.
What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.
What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.
Figure 2

The power station generates electricity at a voltage of 25 kV.
Transformer A increases the voltage by a factor of 16.
What is the voltage output of transformer A?

Why is the voltage increased by transformer A?
Tick one box.

Why is it important that the voltage is decreased by transformer B?

P2 Electricity

P2 Electricity

Match the item to the picture

Draw a circuit diagram from the image

The toaster is plugged in to the mains electricity supply.What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.Figure 2 The power station generates electricity at a voltage of 25 kV.Transformer A increases the voltage by a factor of 16.What is the voltage output of transformer A?

Why is the voltage increased by transformer A?Tick one box.

Why is it important that the voltage is decreased by transformer B?

Match the item to the picture

Draw a circuit diagram from the image

The toaster is plugged in to the mains electricity supply.What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.Figure 2 The power station generates electricity at a voltage of 25 kV.Transformer A increases the voltage by a factor of 16.What is the voltage output of transformer A?

Why is the voltage increased by transformer A?Tick one box.

Why is it important that the voltage is decreased by transformer B?

The toaster is plugged in to the mains electricity supply.
What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.
What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.
Figure 2

The power station generates electricity at a voltage of 25 kV.
Transformer A increases the voltage by a factor of 16.
What is the voltage output of transformer A?

Why is the voltage increased by transformer A?
Tick one box.

The toaster is plugged in to the mains electricity supply.
What is the potential difference between the live and neutral wires?

A network of transformers and transmission cables transfers electrical power from power stations to consumers.
What is this network called?

Figure 2 shows how power stations transfer electrical power to consumers using the National Grid.
Figure 2

The power station generates electricity at a voltage of 25 kV.
Transformer A increases the voltage by a factor of 16.
What is the voltage output of transformer A?

Why is the voltage increased by transformer A?
Tick one box.