Two identical batteries are connected such that their positive terminals are together and negative terminals are together. Then

Two identical batteries are connected in series with +VE terminals together and -VE terminals together, forming a closed circuit. Which of the following will be zero ?

A cell of emf 10 V and internal resistance 3 Omega is connected in parallel with another cell of emf 7V and internal resistance 3/5 Omega, such that their positive terminals are joined together and so there are negative terminals. Their positive terminals are joined with the negative terminal and their negative terminal is joined with the positive terminal of a third cell of emf 20 V with internal resistance 2Omega. The combination can be replaced by a battery of emf E and internal resistance r, then the values of E and R are respectively

Three identical capacitors, each of capacitance C , are connected in series with a battery of emf V and get fully charged. Now the battery is removed and the capacitors are cannected in parallel with positive terminals at one point and negative terminals at other point. Then, The connon potintial will be.

Three identical capacitors, each of capacitance C , are connected in series with a battery of emf V and get fully charged. Now the battery is removed and the capacitors are cannected in parallel with positive terminals at one point and negative terminals at other point. Then, The connon potintial will be.

An electrode that is connected to the positive terminal.

Which metal is connected to the positive terminal of the battery?

The electrode connected to the positive terminal of battery is called cathode.