the plates of a cell are connected to a 4ohms resistor and a potential difference measured across them using a potentiometer is 1.6V. If the 4ohms resistance is replaced by a 3ohms resistance and the potential difference is 1.5V, find the EMF and internal resistance of the cell.​

What are similarities and differences of reflection, refraction, diffraction and absorption?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

What property of an object determines its inertia?