I. Direction. Answer cach question quietly and encirele the letter of the correct answer. 1. One kW-Hr is equivalent to (a) 1,414.14 BTU per hour (c) 1,414.14 Cal. per sec (b) 3,600,000 N.m (d) 3,600,000 kJ 2. The voltage across any part of a circuit is equal to the resistance in Ohms. (a) difference of the current in amperes and the (b) product (d) quotient (c) sum 3. In a scries circuit the current is the in any part of the circuit and the total emf (source) is equal to the (a) same, sum of the voltages across cach resistor (b) same, difference (d) sum, same (c) same, total System efficiency when maximum power is transferred or delivered is (a) 60%. 4. (b) 150%. (d) 200%. (c) 50%. In parallel circuit the emf across ecach resistor is the of all branch currents (a) sum, same 5. and the total current is equal to the (b) same, product (c) same, difference (d) same, sum 6. 1,200 BTU is equivalent to Joules. (b) 1,265,554 (d) 3,600,000 (a) 302,500 (c) 302,400 7. Ohm's Law states that, for a steady current, the current in a circuit is total emf acting in the circuit and is (a) Inversely, dircctly (c) directly, inversely proportional to the proportional to the total resistance. (b) directly, not (d) Inversely, Inverscly 8. is the rate of doing work, or rate of expenditure of energy, and its unit is (a) Energy, Joule (c) Power, Joule (b) Power, Watt (d) Voltage, Volt
Encircle the letter of the correct answer
1.One kW-Hr is equivalent to _______.
(a) 1,414.14 BTU per hour (b) 3,600,000 N.m
(c) 1,414.14 Cal. per sec (d) 3,600,000 kJ
2. The voltage across any part of a circuit is equal to the _______ of the current in amperes and the resistance in Ohms.
(a) difference (b) product
(c) sum (d) quotient
3. In a series circuit the current is the _______ in any part of the circuit and the total emf (source) is equal to the _______ of the voltages across each resistor
(a) same, sum (b) same, difference
(c) same, total (d) sum, same
4. System efficiency when maximum power is transferred or delivered is ______.
(a) 60%. (b) 150%.
(c) 50%. (d) 200%.
5. In parallel circuit the emf across each resistor is the _____ and the total current is equal to the _____ of all branch currents
(a) sum, same (b) same, product
(c) same, difference (d) same, sum
6. 1,200 BTU is equivalent to _______ Joules.
(a) 302,500 (b) 1,265,554
(c) 302,400 (d) 3,600,000
7. Ohm’s Law states that, for a steady current, the current in a circuit is ______ proportional to the total emf acting in the circuit and is ______ proportional to the total resistance.
(a) Inversely, directly (b) directly, not
(c) directly, inversely (d) Inversely, Inversely
8. _______ is the rate of doing work, or rate of expenditure of energy, and its unit is _______.
(a) Energy, Joule (b) Power, Watt
(c) Power, Joule (d) Voltage, Vol
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