Electric Circuits Which of the following has least resistivity? Copper. Aluminium. Lead. Mercury. Copper. Aluminium. Lead. Mercury. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which battery is used in aeroplanes? None of them. Lead acid battery. Dry cell battery. Edission cell. None of them. Lead acid battery. Dry cell battery. Edission cell. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it? 4 × 102 joules. 2.5 × 102 joules. 6 × 102 joules. 3 × 102 joules. 4 × 102 joules. 2.5 × 102 joules. 6 × 102 joules. 3 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will increase. decrease. none of these. remain constant. increase. decrease. none of these. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Active materials of a lead acid cell are lead peroxide. all of above. dilute H2SO4. spongy lead. lead peroxide. all of above. dilute H2SO4. spongy lead. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called a cycle in case of AC operation ? When ac completes the (+)ve half, is called a cycle. Option A and C both. When ac goes through a complete (+)ve to (-)ve, is called a cycle. When an alternating quantity completes the (–)ve cycle, is called a cycle. When ac completes the (+)ve half, is called a cycle. Option A and C both. When ac goes through a complete (+)ve to (-)ve, is called a cycle. When an alternating quantity completes the (–)ve cycle, is called a cycle. ANSWER DOWNLOAD EXAMIANS APP
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