Icse Class 10 Physics [2021] -

Suddenly, the bulb got blazing hot and died. “Too much current,” Grandfather said. “Remember : V = I × R . For a fixed resistor, if voltage (V) goes up, current (I) goes up. But here, heat increases resistance, creating a non-ohmic failure.”

Anya was scared. “It’s poisonous.” icse class 10 physics

Her grandfather, a retired physics teacher, saw her struggle. He didn’t hand her a textbook. Instead, he handed her an old, brass compass. “The lighthouse on Shattered Cove is malfunctioning,” he said. “Fix it. You know all the physics you need. You just don’t know you know it.” The path to the lighthouse was a steep cliff. At the base, a rusty funicular railway (a trolley on a slope) was the only way up. Suddenly, the bulb got blazing hot and died