Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 1, 2 and 3 only 1, 2, 3 and 4 4 only 3 and 4 only 1, 2 and 3 only 1, 2, 3 and 4 4 only 3 and 4 only ANSWER DOWNLOAD EXAMIANS APP
Physics Water is used in car radiator because of its Easy availability High specific heat capacity Low boiling point Low density Easy availability High specific heat capacity Low boiling point Low density ANSWER DOWNLOAD EXAMIANS APP
Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 0.41666666666667 8.5 A 24 A 0.41666666666667 8.5 A 24 A ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following features of a tunnel diode is its drawback Very wide temperature range of operations Very low power consumptions Instability due to negative resistance Extremely high frequency response Very wide temperature range of operations Very low power consumptions Instability due to negative resistance Extremely high frequency response ANSWER DOWNLOAD EXAMIANS APP
Physics Who indirectly determined the mass of the electron by measuring the charge of the electron? Millikan Einstein Rutherford Thomson Millikan Einstein Rutherford Thomson ANSWER DOWNLOAD EXAMIANS APP
Physics When a bar magnet is cut into two equal halves, the pole strength of each piece – Becomes half Becomes zero Remains the same Becomes double Becomes half Becomes zero Remains the same Becomes double ANSWER DOWNLOAD EXAMIANS APP
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