If we don’t have an electric lamp while making an electric circuit with an electric cell, is there any other way through which we can find out if current is flowing in the circuit?, How do we know if a cell or a battery is dead?, Which of the following produces a magnetic field? a) A current-carrying wire b) A plastic ruler c) A glass rod d) A wooden stick, Riya connects a wire to a battery and places a compass nearby. The compass needle deflects when the circuit is switched on and returns to its original position when switched off.a)Why did the compass needle deflect? b)b) What does this show about a current-carrying wire?, Name the phenomenon in which electric current produces a magnetic field., What is a compass needle made of? a) Plastic b) Wood c) A tiny magnet d) Glass

Let's recall........

さんの投稿です
印刷
埋め込み

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?