MCQ
In engines water is used as coolant, because ......
- AIt good conductor of heat energy
- BIt has low density
- ✓It has high specific heat
- DIt's bad conductor of heat energy
Because it absorbs and gives off heat readily or it has high specific heat.
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$1^{st}$ Way : By using spring of smaller torsion constant.
$2^{nd}$ Way : By using a smaller coil
$3^{rd}$ Way : By using a stronger magnet
$4^{th}$ Way : By using a coil having fewer number of turns.