A 100% efficient step-up transformer has primary voltage VpV_{\text{p}}Vp and primary current IpI_{\text{p}}Ip.
Which row in the table correctly compares the secondary voltage with VpV_{\text{p}}Vp and the secondary current with IpI_{\text{p}}Ip?
| Secondary voltage | Secondary current | |
|---|---|---|
| A | greater than VpV_{\text{p}}Vp | greater than IpI_{\text{p}}Ip |
| B | greater than VpV_{\text{p}}Vp | less than IpI_{\text{p}}Ip |
| C | less than VpV_{\text{p}}Vp | greater than IpI_{\text{p}}Ip |
| D | less than VpV_{\text{p}}Vp | less than IpI_{\text{p}}Ip |
Row A
Row B
Row C
Row D
136 exam-style questions on CIE IGCSE Physics 4.5.6a Construction and operation of a transformer. Each one has a worked solution and a mark scheme showing where the marks go.