Mnemonic Device: Twinkle Twinkle Little Star, Power equals I squared R Explanation: power in watts = V * V * I (or in SI P = U * I)

  Mnemonic Device: Better Be Ready Or Your Great Big Venture Goes West Variations: Bill Brown Realized Only Yesterday Good Boys Value Good Work Bad Booze Rots Our Young Guts,
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  Mnemonic Device: B.B. ROY Great British is Very Good Wife Explanation: to remember the color code for carbon resistance (resistors) Black Blue Red Orange Yellow Green Brown Violet Grey White

  Mnemonic Device: SCAN Explanation: for the magnetic field induced in a coil (loop) South Clockwise/Anti-Clockwise North