Q: A carbon resistor of \$(47\pm 4.7)k\Omega\$ is to be marked with rings of different colours for its identification. The colour code sequence will be:

Digit Multiplier Tolerance 4 7 \$10^3\$ \$\dfrac{4.7}{47} = 10\$%Yellow - Violet - Orange - Silver

Question 1

A carbon resistor of $(47\pm 4.7)k\Omega$ is to be marked with rings of different colours for its identification. The colour code sequence will be:

Accepted Answer

Digit                      Multiplier                   Tolerance    4              7                    $10^3$                         $\dfrac{4.7}{47} = 10$%Yellow  -  Violet        -      Orange              -         Silver

Question 2

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:

Accepted Answer

Potentiometer works on the principle of wheatstone bridge i.e no current flows through the galvanometer

Current Electricity

Physics
5498 Views

A carbon resistor of $(47 \pm 4.7) k Ω$ is to be marked with rings of different colours for its identification. The colour code sequence will be:

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:

Current Electricity

Physics 5498 Views

A carbon resistor of (47±4.7)kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be:

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:

Physics
5498 Views

A carbon resistor of $(47 \pm 4.7) k Ω$ is to be marked with rings of different colours for its identification. The colour code sequence will be: