# Digital Electronics - Counters - Discussion

### Discussion :: Counters - General Questions (Q.No.3)

3.

A MOD-16 ripple counter is holding the count 10012. What will the count be after 31 clock pulses?

 [A]. 10002 [B]. 10102 [C]. 10112 [D]. 11012

Explanation:

No answer description available for this question.

 Brahma Rao K V said: (Aug 23, 2011) Mod-16 means the output will repeats for 16th pulse again 32th pulse ok here present the data is 1001=9. So for 31th pulse it is (1001)-(0001) = 1000 = 8.

 Swathi said: (Nov 8, 2013) Current state of flip-flop is 9(1001), means total 9 pulses are completed and we require after 31 pulses, So total clock pulses are 40. MOD-16 ripple counter count 16 states and it will repeat again. so for 2nd round 32 clock pulses are completed. Therefore 40-32 = 8.

 Seema said: (Dec 27, 2013) How? find the clock pulse? for 32?

 Viju said: (May 19, 2014) Give me a complete Explanation?

 Mikki said: (Aug 14, 2014) The question says after 31, so the next is 32.

 Shashank said: (Aug 15, 2014) Since its a MOD-16 counter the current state that is 1001 will repeat at the 16th pulse. So 1001 will come on the application of 32nd clock pulse. We need the output at 31st pulse which is one less than 1001(9) which is 1000(8).

 Prashanth said: (Oct 31, 2015) There are two options 1000 and 1010 how to say it? whether a up counter or a down counter? If it is up it will be 1010 if it is down 1000. Am I right?

 Shubham said: (Mar 8, 2016) Yeah bro you're right here its not specified its up or down counter but I thought if its not given what type of its we assume up counter.

 Deep said: (Jul 1, 2016) Dear all of guys please suggest me a book and app for this type question.

 Yaswant said: (Apr 30, 2017) 1001 = 9. After 31 means 9+31 = 40, Ripple counter after 9=1000, Then 0000, Then 0001------------> 1000.

 Rakib Hasan said: (Sep 18, 2017) Assume that the MOD-10 counter is in the 1010 state. What will be the state (count) after 200. Pulses have been applied. *If anyone knows this answer please explain me.

 Vivek said: (Apr 2, 2018) @Rakib Hasan. The Mod-10 counter has 10 states and will repeat its initial state(state at clock 0) after every 10 clock pulses(i.e. whenever the clock is multiple of 10 e.g. 10, 20, 30, 40,.............200 etc). Here initial state is 1010, After 10 clock state is 1010. After 20 clock state is 1010. So on; After 200 clock state is 1010.

 Shubhranshu said: (Mar 29, 2019) Thanks all for explaining this.

 Madhvi Sukhanandi said: (Sep 3, 2019) It holds 1001state, that why it's complete 16 clk and after it's starting initial 0000 state and then again start another 16 clk so 16+16=32. so after another 16 clk also state is 1001, so 32 clk state is 1001=9 and 31 clk is 1000 =8 state. Because 0000=0 it's clk is 0. 0001=1 it's clk is 1. . . 0111=7 it's clk is 30, 1000=8 it's clk is 31, 1001=9 it's clk is 32.