According to Hubble's law, the redshift (Z) of a receding galaxy and its distance r from earth are related as
The V-I characteristics of a silicon diode is given in Fig .Calculate the diode resistance in forward bias at V=+2V and V=+1V and reverse bias V=-1V and V=-2V .
V_1, V_2, V_3 and V_4 are the volumes of four cubes of side lengths x c m , 2x c m , 3x c m and 4x c m respectively. Some statements regarding these volumes are given below V_1+V_2+2V_3
Three block 1, 2 and 3 are arranged as shown in the figure. The velocities of the blockes v_(1) , v_(2) and v_(3) are shown in the figure. What is the relationship between v_(1) , v_(2) and v_(3) ?
(i) i= 0.25 A (ii) V_A - V_B = 3.5 V (iii) V_A - V_C = 2.25 V Equivalent resistance = 7 Omega .
The ratio v_(rms):overline v:v_(mp)= _______ .
In the circuit, the battery is ideal. A voltmeter of inifinite resistance is connected in turn across R_1 and R_2 , giving reading of V_1 and V_2 respectively. . (i) V_1 = 80 V (ii) V_1 = 60 V (iii) V_2 = 30 V (iv) V_2 = 40 V .
