solve the following with solution and in sa form

6. An electronic device has a resistance of 55 ohms and a current of 25 A. What is the voltage across the device? 1 A a~v potential difference is applied across a 89 resistor: What is the current that flows into the resistor? 8. The wire's length and area are 0.4 m and 03mg, respectively. Calculate the resistivity of that wire whose resistance Is an. 9. A 10 mm: copper wire has a current of7mA of current flowing through it. Determine the current density. 10. Determine the current density of if 70 Amperes of current flows through the battery in an area of 20 m2? 11. Calculate the resistivity of a wire having length [1.2 m, area [1.5 m square, and resistance of 3 ohms. 12. What would be the resistivity of a material if it has a resistance of; ohms, area of cross-section of 25 cm square, and length of 15 cm. 13. Calculate the resistivi of a material with a resistance of 2 and a crossjsectlonal area an length of 25 cm2 and 15 cm, respectlvely. 1A. A 100 coulomb charge flows through a wire in 1 minute. Calculate the current. 15. An electronic device has a resistance of 150 ohms and a current of 55 A. What is the voltage across the device