Page 261 - Basic Electrical Engineering
P. 261
c.
d. R.
4. What will be the equivalent resistance of the circuit between the terminals A and B?
Figure 2.184
a. 45 Ω
b. 35 Ω
c. 170 Ω
d. 80 Ω.
5. What are the values of R and R in the circuit shown?
1
2
Figure 2.185
a. 12 Ω and 4 Ω
b. 4 Ω and 12 Ω
c. 6 Ω and 2 Ω
d. 2 Ω and 6 Ω.
6. The voltage applied across a 230 V, 60 W lamp is reduced to 115 V. What will be power
consumed at this reduced voltage?
a. 60 W
b. 30 W
c. 120 W
d. 15 W.
7. Two resistances of equal value R and a wire of negligible resistances are connected in star
formation as shown in Fig. 2.186. What will be the resistance between the terminals A and B
