If a copper layer has to be deposited on a steel spoon by electroplating,where should the copper rod be connected?

$A$ nichrome wire has a resistance of $10\, \Omega$. Find the resistance of another nichrome wire,whose length is three times and area of cross-section four times the first wire.

Define resistance of a conductor. State the factors on which resistance of a conductor depends. Name the device which is often used to change the resistance without changing the voltage source in an electric circuit.
Calculate the resistance of $50 \, m$ length of wire of cross-sectional area $0.01 \, mm^2$ and of resistivity $5 \times 10^{-8} \, \Omega \, m$.

When two resistors of resistances $R_{1}$ and $R_{2}$ are connected in parallel,the net resistance is $3 \, \Omega$. When connected in series,its value is $16 \, \Omega$. Calculate the values of $R_{1}$ and $R_{2}$.

What are solutions that conduct electricity called?

$A$ metal has a very large number of free electrons and a non-metal has a very small number of free electrons.