Subsection 4.4. Electrical safety for Physics, IGCSE - revisedeck

4.4. Electrical safety

A subsection of Physics, 0625, through 4. Electricity and magnetism

Listing 10 of 187 questions

Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that could cause overheating. electrical supply X Y appliance cable cable live neutral When a fuse is used, where should it be connected, and when a circuit-breaker is used, where should it be connected?

0625_m15_qp_12

MCQ

2015

Paper 1, Variant 2

View

The diagram shows electricity cables being put up on a warm day. The cables are left loose between the poles, as shown...

0625_m16_qp_12

MCQ

2016

Paper 1, Variant 2

View

After some building work in a house, a bare live wire is left protruding from a wall. What is the greatest hazard?

0625_m16_qp_12

MCQ

2016

Paper 1, Variant 2

View

After some building work in a house, a bare live wire is left protruding from a wall. What is the greatest hazard?

0625_m16_qp_22

MCQ

2016

Paper 2, Variant 2

View

In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. electrical supply X Which row indicates components that are suitable?

0625_m17_qp_12

MCQ

2017

Paper 1, Variant 2

View

In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. electrical supply X Which row indicates components that are suitable?

0625_m17_qp_22

MCQ

2017

Paper 2, Variant 2

View

The current in a kettle is 10 A and the kettle is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on?

0625_m19_qp_12

MCQ

2019

Paper 1, Variant 2

View

The current in a kettle is 10 A and the kettle is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on?

0625_m19_qp_22

MCQ

2019

Paper 2, Variant 2

View

Which electrical component is connected in series with an electric circuit to protect it from damage by a very large current?

0625_m21_qp_12

MCQ

2021

Paper 1, Variant 2

View

The current in a kettle is 10 A and the kettle is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on?

0625_m23_qp_12

MCQ

2023

Paper 1, Variant 2

View

Questions Discovered

187