How does the magnetic field produced by a current-carrying straight wire vary with the distance from the wire?

When is the force experienced by a current-carrying conductor placed in a magnetic field the largest?

According to the Right-Hand Thumb Rule,what does the thumb indicate?

Which type of metal or alloy cannot be used to prepare a fuse wire?

Which of the following appliances cannot be connected in a $15\, A$ current line?

Draw the pattern of magnetic field lines through and around a current-carrying circular loop of wire. How would the strength of the magnetic field produced at the centre of the circular loop be affected if: $(i)$ the strength of the current passing through this loop is doubled? $(ii)$ the radius of the loop is reduced to half of the original radius?