What is Lenz law derive its expression?

MULTIPLE CHOICE -The answer is one of the options below please solve carefully and circle the correct option Please write clear .

Solve for all parts. Will give thumbs up

What is the unit E?

Question is on picture, Answer option is: two or more, ab, a'b, ab', a'b', none. please help me thank you so much.

Read and Solve carefully please Write clearly and Box the Final answer Hint : Enter your answer to the 2nd nearest decimal place in percent.

I have a wooden toy train that runs on wooden tracks. I would like to place two ESP-WROOM-32 Boards on top of the train. Broadcast communication (which involves radio frequency, not Wi-Fi) would help communicate about the train's lateness to five other wooden trains on the same track. Local communication would help communicate to the train station about the train's lateness. I would also need radio frequency Tx-Rx Modules for discharging and undergoing the signal, and repeaters just in case the signal loses power due to long-distance traveling. My wooden train should be automated. It should run at 4 inches per second, keep a minimum distance of 30 seconds away from the other wooden trains, and make a 17-second-long stop every 500 seconds. What's the procedure to connect the components? What's the Arduino code (C++) for this project?

Please show complete solution. Answer both item.

2. Which of the symbols in Figure A6 represents a circuit breaker with thermal overload protection?A. CB. DC. AD. B

How is induction applied? For each , give details of how induction is achieved?