Three statements about connection of cells are given below. I. Connecting cells in parallel provides more electrical energy to the circuit in every one second
II. Connecting cells in parallel increases lifetime of cells
III. Connecting cells in series decreases lifetime of cells
Which statement(s) is/are wrong?
A. OnlyI B. onlyIII C. IIandIII D. I, IIandIII

A. OnlyI- connecting cells in parallel provide more electrical energy to the circuit in every one second

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

probably not if net force is zero