जब किसी इलेक्ट्रॉनिक उपकरण पर वोल्टेज 0.3 mV होता है, तो उससे 15 mA की धारा प्रवाहित होती है। उपकरण का प्रतिरोध क्या होगा?

Why are alloys such as nichrome commonly used for heating elements in electric kettles instead of pure metals?

In a standard DC circuit, what is the conventional direction of electric current?

Which of the following expressions does NOT accurately represent the formula for electrical power P?